| Names | |
|---|---|
| Preferred IUPAC name | Zinc 1-hydroxy-2(1H)-pyridinethione-1-oxide |
| Other names | Pyrithione zinc ZPT 1-Hydroxy-2-pyridinethione zinc salt Zinc 2-pyridinethiol-1-oxide Zinc omadine Zinc pyridinethione |
| Pronunciation | /ˌzɪŋk paɪˈrɪθi.oʊn/ |
| Identifiers | |
| CAS Number | 13463-41-7 |
| Beilstein Reference | 1207932 |
| ChEBI | CHEBI:78061 |
| ChEMBL | CHEMBL1556 |
| ChemSpider | 213598 |
| DrugBank | DB11321 |
| ECHA InfoCard | 03b6d6e3-3e35-491a-8c79-67a6af59a28d |
| EC Number | 264-976-0 |
| Gmelin Reference | Gmelin Reference: **104388** |
| KEGG | C14431 |
| MeSH | D015820 |
| PubChem CID | 26041 |
| RTECS number | ZT0350000 |
| UNII | J2Z13V8SF5 |
| UN number | UN3077 |
| Properties | |
| Chemical formula | C10H8N2O2S2Zn |
| Molar mass | 317.7 g/mol |
| Appearance | White or yellowish crystalline powder |
| Odor | Odorless |
| Density | 1.65 g/cm3 |
| Solubility in water | Slightly soluble |
| log P | 0.81 |
| Vapor pressure | <1 mm Hg (20 °C) |
| Acidity (pKa) | 6.3 |
| Basicity (pKb) | 8.7 |
| Magnetic susceptibility (χ) | Diamagnetic |
| Refractive index (nD) | 1.60 |
| Viscosity | Viscosity: 20 mPa·s |
| Dipole moment | 3.61 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 322.5 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -251.1 kJ/mol |
| Pharmacology | |
| ATC code | D11AC08 |
| Hazards | |
| Main hazards | Harmful if swallowed or in contact with skin. Causes serious eye damage. Toxic to aquatic life with long lasting effects. |
| GHS labelling | GHS07, GHS08 |
| Pictograms | GHS05,GHS07 |
| Signal word | Warning |
| Hazard statements | Hazard statements: H302, H312, H318, H400, H410 |
| Precautionary statements | P264, P280, P302+P352, P305+P351+P338, P332+P313, P337+P313, P362+P364 |
| Flash point | > >100°C (212°F) |
| Lethal dose or concentration | LD50 Oral Rat 142 mg/kg |
| LD50 (median dose) | LD50 (median dose) of Zinc Pyrithione: **220 mg/kg (oral, rat)** |
| NIOSH | NIGG1500 |
| PEL (Permissible) | 5 mg/m³ |
| REL (Recommended) | 1.0% |
| IDLH (Immediate danger) | Unknown |
| Related compounds | |
| Related compounds | Zinc Omadine Pyrithione Copper Pyrithione Sodium Pyrithione Bis(1-hydroxy-2(1H)-pyridinethionato-O,S)zinc 1-Hydroxy-2-pyridinethione |
| Property | Description |
|---|---|
| Product Name | Zinc Pyrithione |
| IUPAC Name | Bis(1-hydroxy-2(1H)-pyridinethionato-O,S)zinc |
| Chemical Formula | C10H8N2O2S2Zn |
| Synonyms & Trade Names | ZPT, Zinc Omadine, Zinc 2-pyridinethiol-1-oxide, Pyrithione Zinc |
| HS Code & Customs Classification | 29333999 (nationally assigned codes and sub-classification may differ based on jurisdiction or local customs authority updates) |
Commercial production of Zinc Pyrithione focuses on batch consistency, impurity profile minimization, and tight control of parameters affecting particle morphology and dispersibility. Suitable raw material quality establishes the first major variable in our process route selection: both the purity and particle size of zinc salt and pyrithione intermediates drive downstream separation strategy. Reaction conditions must account for the grade required by formulators in personal care, coatings, or polymer compounding industries. Suspension grade material relies on controlling agglomerate size and moisture content, while dry powder specifications require intensified drying and screening steps.
Real drivers in industrial practice relate to grade-based differences. Cosmetic and personal care grades often demand narrower particle size windows and explicitly managed trace metal contaminants. Technical grades for anti-fouling or plastics can tolerate wider specification bands; yet batch traceability and reproducibility remain a focus as final users may carry out incoming quality checks on heavy metal content, dispersibility, and residual free pyrithione.
From the manufacturer’s perspective, the challenge is rarely in achieving theoretical assay: key risk factors concentrate in prevention of byproduct formation, including over-oxidation or residual solvents that affect product odor or downstream formulation compatibility. We deploy on-line monitoring to detect reaction endpoints and implement staged washing and filtration to strip soluble and colloidal impurities. Every batch release reflects not just analytical results, but also visual and dispersibility properties that affect end-user processing—especially for high-load dispersions or direct addition to polymer melts. The final product specification, including physical property metrics and packing condition, differs by customer and region and is confirmed per internal QC criteria for each consignment.
In industrial production, zinc pyrithione typically appears as a white to slightly off-white powder or granule. The form can be fine crystalline or microgranular, depending on the drying step and downstream usage. Color shift toward beige or yellow often points to side reactions or raw material impurities; we evaluate incoming lots by visual and instrumental checks for consistency. Odor is usually negligible, but batches with faint musty notes sometimes arise due to trace organic residues from synthesis or solvent traces.
Melting and decomposition characteristics differ with grade and hydration level. Complete and partial dehydration steps, as well as the presence of co-crystallized solvent, can move the observed melting range notably. Industrial drying and milling protocols set the thermal behavior, impacting flow and dispersion in customer formulations.
Boiling point is not technically relevant due to decomposition before boiling. Flash point is similarly non-applicable and rarely reported because of zinc pyrithione’s low volatility and decomposition propensity at elevated temperature.
Density depends on crystal packing and degree of granulation. Bulk density is tailored by spray drying or agglomeration according to end-use—for suspension, dusting, or masterbatch.
The molecule shows moderate stability under cool, dry conditions with limited UV and oxidative stress. High humidity, direct sunlight, alkaline environments, and metals able to catalyze oxidation create rapid degradation. Product grades designed for polymer masterbatch require tighter water activity controls and anti-oxidant stabilization.
Solubility in water is very low; dispersibility instead becomes the critical parameter for many customer processes. Surfactant or co-solvent choice, mixing speed, and particle size all influence the final preparation result, especially for formulation into shampoo or antifouling paint. We advise pH stabilization and gentle agitation to avoid hydrolysis.
| Property | Standard Technical Grade | High Purity/Special Grade |
|---|---|---|
| Assay (as Zn Pyrithione) | Typical levels aligned with customer application specs | Specified for sensitive applications (e.g., personal care) |
| Moisture | Range depends on drying process and packaging | Tighter limits for polymer or electronics applications |
| Appearance | White to pale yellow powder/granule | Whiter color, fine control on particle distribution |
| Trace Metals | Monitored by ICP; varies with raw material source | Additional purification for low-catalyst applications |
| Particle Size | Adjustable (targeted for dispersion or dusting) | Ultra-fine for solution/suspension use |
Profile is controlled by raw material purity, process side reactions, and wash/purification performance. Sulfide, oxidized pyrithione, inorganic salts, and organic by-products are tracked. Customer specs define allowable limits. In-process controls focus on reaction completeness and effective filtration to manage impurity carryover.
Assays use potentiometric titration, UV/VIS spectroscopy, or HPLC where applicable. Identity checks use FTIR or NMR for high-purity lots. Particle analysis uses sieve tests or laser diffraction, with standards defined per industry norms or customer acceptance.
Choice of 2-mercaptopyridine-N-oxide and zinc source (mainly zinc oxide or basic zinc carbonate) dictates impurity profile and downstream processing requirements. Qualification of suppliers reduces risk of trace heavy metals or batch-to-batch reactivity variation. Multi-stage pre-treatment and pre-filtration improve incoming material consistency.
Typical routes run through aqueous/ethanol suspension of the pyrithione salt, zinc oxide addition, controlled pH adjustment, and temperature ramp. Excess reagents and by-product removal hinges on filtration and wash parameters. Batch or semi-continuous operation is selected by plant layout, batch control, and demand volume.
Critical controls involve pH, temperature, agitation, and filtration rate to lock in yield and manage particle size. End product passes water and solvent washes to limit impurities. For high-purity applications, additional recrystallization and micron filtration can be implemented.
Batch release hinges on in-process analytical checks: assay, impurity scan, appearance, and moisture. Specifications differ by market—cosmetics, plastics, coatings—each may stipulate further sensory or compatibility checks. Customer contract specs can layer on extra qualification steps.
Zinc pyrithione resists routine acid/base hydrolysis but gradually breaks down under strong oxidants or prolonged UV exposure. Formulation in oxidizing or reducing media needs stabilization measures.
Most downstream modification or formulation work proceeds at moderate temperatures under inert or neutral conditions. Catalysts are generally avoided to prevent breakdown or unwanted side-reactions in finished products.
Product modifications focus on particle-size, dispersion improvement, or surface treatment. Further derivatives stem from substitutions on the pyrithione core, subject to regulatory approvals and end-use requirements.
Zinc pyrithione demands storage in airtight, light-blocking packaging away from moisture, acids, and oxidizing chemicals. Sensitive grades for polymers or cosmetics require low humidity and inert gas blanketing, controlled warehouse monitoring, and FIFO logistics.
Containers use polyethylene or lined steel to prevent metal contamination. Storage with incompatible materials, particularly acidic or oxidizing agents, is strictly avoided.
Shelf life depends on grade and packaging quality. Color change, odor development, caking, or visible moisture flag significant degradation and call for batch reevaluation or disposal. Technical teams monitor long-term batches and feed this data back into logistics and production planning.
Zinc pyrithione typically receives hazardous classification for aquatic toxicity and skin sensitization risk. All batches ship with updated safety labelling under regional GHS/CLP frameworks.
Standard precautionary statements advise use of gloves, protective clothing, and ventilation during handling. Environmental releases are stringently controlled to prevent discharge to water.
Technical and regulatory references cite oral and dermal toxicity thresholds that set downstream user procedure. Grade and purity influence safe-handling limits; customer applications inform need for additional toxicity characterization, such as leachables in polymer or cosmetic use.
Manufacturing environments rely on process enclosure and dust control measures. Occupational limits for airborne exposure depend on factory regulations, product form (dust, slurry), and regional standards. Training and procedural adherence remain our major risk mitigators. All handling setups integrate robust emergency response plans, including spill management and area decontamination.
In industrial-scale zinc pyrithione synthesis, the production base defines continuity and peak output through two routes: continuous and batch processes. Large-volume plants tend to leverage continuous multistep reactors for consistent throughput, with the actual maximum supply rate dependent on scheduled maintenance, intermediate purification cycle times, and plant utility reliability. Small to medium producers rely more on batch processing and campaign runs, which introduces more frequent line turnovers and, at times, periodical availability drops during grade changes or plant upgrades. Regular raw material intake (zinc salts, pyrithione ligands) and intermediate storage logistics often dictate buffer inventory and ready-to-ship volumes.
Lead times for zinc pyrithione orders reflect both plant campaign cycles and order volume. For standard cosmetic or industrial grades, shipment lead from finished inventory can be managed within two to four weeks. Specialty grades or higher-purity, low-trace metal product lines involve dedicated runs and extended purification, with lead times dependent on analytical release. The minimum order quantity follows reactor volume and packaging stance—drum, IBC, or sack—as well as constraints from transportation regulation, with packaging standards varying by region. Typical MOQs apply to full pallet shipments or consolidated export loading.
Grade, destination market, and customer handling constraints drive packaging selection. Most industrial customers request fiber drums or HDPE containers shielded from moisture and UV; export-grade options accommodate container freight and palletization for sea or rail. Compliance certifications for transportation, whether UN-certified barrels or ADR/RID marking, depend on the application and region. Payment terms generally track market conventions: T/T for established international clients, with letter of credit or stage-wise deposits required for high-volume or long transit schedules. Incoterms (FOB, CIF, DDP) depend on destination, local customs compliance complexity, and buyer preference.
Raw material outlay anchors the cost basis of zinc pyrithione, with major components being high-purity zinc salt and specialty pyrithione intermediates. Zinc prices are subject to cyclical LME volatility, mining region output variances, and consumable-grade refinement changes, each impacting cost consistency. Pyrithione ligand synthesis, dependent on thiol and carbonate feedstock, can see spikes from changes in upstream specialty chemical supply, particularly when regulatory restrictions or procurement lag affect the markets.
Price tiers directly track the grade, which is determined by end-use (cosmetic, industrial, preservation). High-purity or certified grades (low residual metals, specific crystalline forms) cost more to produce due to multi-step purification and validated analytical release. Certification process—REACH, EPA, BPR—increases the compliance burden in documentation, traceability, and third-party audit fees. Package certification (hazmat shipping, food-contact compliance) also changes the final price point.
Product differentiation by grade brings structural price differences. Technical and industrial-grade zinc pyrithione—destined for coatings or plastics—normally focus on economic large-volume runs without low-trace element control, which lowers the price. Cosmetic and pharma uses require full analytical traceability, GMP batch log retention, and specialized containers, significantly raising cost due to tighter in-process controls, high-yield isolation, and repeat release QC. Third-party packaging audits, serialization, or regional hazard symbol requirements (GHS, CLP) can shift packaging costs.
The availability of zinc pyrithione globally reflects regional plant capacity and permitted end-use applications. Several production clusters (East Asia, EU, North America, India) manage global demand, but regulatory restrictions, such as EU biocidal regulation and periodic EPA reviews, cause uneven end-market access. Supply-chain interruptions—whether from raw material restrictions, export policy shifts, or health/safety regulatory enforcement—create periodic shortages and speculative pricing.
- US: Maintains consistent import volumes, subject to EPA and TSCA reviews. Safe-use reclassification or new hazard studies can delay product flow.
- EU: Regulatory tightening post-BPR and specific usage bans have driven smaller cosmetic and preservative manufacturers to non-EU sources or substitute chemicals. Supply into EU now demands full traceability, shifting producer cost and risk structures.
- JP: Japanese buyers prioritize long-term supply contracts and high-specification grades, often requiring greater analytical support and JIS compliance.
- IN: Domestic production capacity has grown, with fluctuation in export volumes due to periodic environmental crackdowns on upstream intermediates.
- CN: China represents both a raw material hub and finished product exporter. Export bottlenecks tie back to anti-pollution campaigns, energy rationing, and periodic customs reviews.
Based on accessible industry reports, historical LME zinc pricing, regulatory reviews, and published trade logistics data, the forecast to 2026 points to steadier but high average pricing—driven by compliance costs, supply chain resilience investments, and periodic supply-side disruptions from climate regulations or feedstock allocation. Methodology includes regression modeling on spot trade, contract negotiations from major buyers, and inventory volatility tracking. Persistent regulatory tightening in EU and selective approval in North America likely continues to raise compliance-driven price premiums for certified grades.
Recent years brought tighter allowable impurity limits in some end-use sectors, prompting upstream producers and refiners to upgrade process control, particularly in batch traceability and point-of-origin documentation. Trade friction between China and major importers intermittently brings extended clearance times for hazardous cargo, impacting global supply cycles and causing temporary upward price adjustments to account for demurrage and re-inspection.
Notable regulatory updates have included alterations to biocide approval listings (EU, UK) and periodic re-examination of health and safety profiles by EPA. Changing stance on micro-contaminant thresholds has led to more stringently enforced supplier declarations and validated lab testing at the point of export and import. A number of newer regulations focus on supply chain transparency, driving producers to extend their certificate of analysis and batch documentation.
To address changing compliance and logistics requirements, plants have invested in faster batch-release analytics and expanded internal QA labs. Some manufacturers have adopted more flexible campaign scheduling to accommodate short-notice grade change requests or expedited sample shipments for requalification under new buyer programs. Stockpiling of critical intermediates and engaging multiple feedstock vendors offsets unpredictability in raw material cost swings, helping maintain contractual supply stability.
Zinc Pyrithione exists as a functional biocide and antifungal active across several industries. Our technical, cosmetic, and industrial grades differ in composition and impurity control due to application-specific demands. In personal care, formulators use cosmetic grade in shampoos and anti-dandruff products, where microbial purity and color stability shape raw material acceptance. In paint and coatings, industrial grades serve as dry-film preservatives. Manufacturers in plastic compounding and adhesives integrate compatible grades during masterbatch mixing, typically aligning with dispersion and stability requirements tied to melt processing.
| Application Field | Matching Grade | Main Requirements |
|---|---|---|
| Personal Care (shampoos, hair products) | Cosmetic/Pharmaceutical | Low heavy metals, defined particle size, odor management, microbiological control |
| Paints & Coatings | Industrial/Technical | Particle compatibility with formulation matrix, pigment whiteness, controlled insoluble content |
| Plastics, Polymers, Adhesives | Technical/Customized | Thermal stability, bulk density, compatibility with carrier resins |
| Textile & Leather Preservation | Industrial | Dispersibility, residual solvent content, fiber staining control |
For cosmetic use, color stability and low odor reduce risk of consumer rejection, while tight microbial control prevents secondary contamination. In paints, fine dispersion ensures long-term uniform film protection and minimizes chalking. Polymers require thermal stability to prevent decomposition during extrusion, which relies on low-residual salt content and precise moisture control. In textiles, focus shifts to process residuals and avoidance of yellowing or fiber breakage.
Start with the end use. In upstream meetings, technical teams regularly discuss whether the intended formulation is a rinse-off cosmetic, leave-on skin contact application, or a solid matrix such as paint or plastic. Process engineers map these requirements to initial grade options.
Different target regions accept or restrict certain impurity limits and allowable percentages (such as EU or US FDA rules). Regulatory specialists review the impurity profile, trace element data, and residual solvent analysis for compliance—these become batch release criteria.
Formulation downstream often hinges on purity. Cosmetic use prioritizes removal of trace metals and residual solvents, which shift based on the synthesis route. Technical grade for industrial paints allows broader impurity windows, but solid dispersibility and thermal performance must still withstand internal batch-to-batch quality checks.
For pilot and specialty runs, cost per kilogram is less critical. During scale-up or transition to plant trials, purchasing and operations teams review delivery form (powder, wet cake, granule), bulk shipment packaging, and cost-performance balance. Larger volume lines often specify looser color tolerance, accepting marginal cost savings over ultra-pure cosmetic lots.
No final grade recommendation achieves sign-off before application testing. Formulators assess the product via representative aliquot from regular production, not pilot or lab batch. QC labs run compatibility and stability tests under intended formulation conditions, including real-time and accelerated aging if required. Final approval routes through technical feedback loop with production, quality, and commercial teams to address any process-specific or performance-specific needs.
Manufacturing Zinc Pyrithione relies on continuous internal audits and external certification. Our facilities operate under recognized quality management frameworks with documented traceability for each batch release. Auditors regularly assess site practices against evolving industry criteria and customer audit requests. Consistent batch reproducibility and deviation control form the foundation of our policy.
For regulatory and market access, Zinc Pyrithione grades may carry attestation relevant to their markets. Typical documentation includes compliance with chemical inventory registration and published monographs, depending on intended application—be it antimicrobial preservation, industrial biocide, or coatings use. Specific certificates such as those referencing active substance dossiers or reach registration are linked directly to the supplied batch and customer segment.
Production records include full lot genealogy, test data sheets, and process deviation logs. Reports issued include certificate of analysis, process control charts, and where required, impurity profile summary. All delivered documentation originates from the production and QA departments and details test method used, reference standards, and basis for the batch release. Import documentation and registration support files are issued as needed for international customers.
Production planning for Zinc Pyrithione is built around forecasted and contract commitments, buffered for seasonal and market-driven demand changes. On the manufacturing side, core production assets use established supply routes for the main raw materials—ensuring resilience against feedstock disruption. Forward allocation and safety stock management occur in parallel with real-time client updates. Customers looking for long-term volume partnership benefit most from forecast sharing and supply schedule alignment.
Manufacturing throughput depends on maintained process line uptime and predictive maintenance systems. We keep primary and secondary production lines available, taking running yield and conversion rate trends into account. Fluctuations driven by grade specification or customized impurity thresholds require planned production slotting. Reliance on single-point sourcing is minimized by qualifying multiple suppliers for key precursors.
Sample requests for Zinc Pyrithione are processed on a technical consultation basis—most application needs, such as for coatings, plastics, or personal care, require review of end-use conditions and preliminary material compatibility checks. Samples are drawn under controlled conditions, labeled with batch and manufacturing date, and can include supporting COA and MSDS relevant to the requested application. Technical support is available to interpret analytical data or adjust sample specification.
Cooperation can progress via fixed contract, rolling forecast, or call-off order systems, depending on volume predictability and planning cycles. For projects entering commercial scale from lab or pilot stage, phased scale-ups align batch production with validation testing or registration requirements. Terms such as consignment supply, dual-warehouse inventory, or deferred delivery programs can be discussed to fit specific customer supply chain structures. Review meetings routinely address supply reliability, usage forecasts, and technical change notifications.
Zinc pyrithione has attracted steady R&D attention due to its persistent demand in antimicrobial and antifungal applications. In industrial practice, research tends to focus on:
Researchers increasingly explore zinc pyrithione in building materials, advanced textiles, and polymer composites. New efforts aim to tailor particle size, surface modification, and encapsulation for applications with strict leachability or photo-stability requirements, typical in outdoor or high-exposure scenarios. Grade-specific adjustments are needed for polymer compounding and water-soluble systems due to compatibility and release control concerns.
Consistent batch quality at commercial scale remains a technical hurdle, particularly concerning particle size distribution, free zinc content, and trace organics. Breakthroughs in automated reaction monitoring and closed-loop purification steps yield tighter control, particularly vital for large-batch consistency and downstream processing in paint or personal care applications where end-use compliance is tied to impurity profiles. Optimizing chelation and precipitation pathways reduces organosulfur by-product carryover and color instability. Control of water content and wet cake handling further impacts shelf stability and downstream blending.
Demand for zinc pyrithione is forecast to show moderate growth in the coatings, synthetic fiber, and personal care sectors, subject to region-specific regulations and end-user product trends. Reaction to changing registration requirements influences investment in new grades and compels improvements in both process transparency and traceability. Client requests increasingly specify application-driven impurity ceilings and require full production history tracking. Inventory planning must consider possible changes in regulatory status, particularly regarding leave-on and rinse-off personal care product approvals in key global markets.
Process design trends favor continuous flow systems for better control of reaction kinetics and trace impurity removal, supporting both energy efficiency and lower operator intervention. Sensor integration for in-line monitoring reduces batch failures linked to raw material variability and environmental fluctuations. Process advances incorporate solvent recovery and mother liquor recycling, reducing operational waste streams. Efforts to use alternative zinc sources or greener pyrithione synthesis routes arise from pressure on input supply chains and increasing scrutiny by downstream buyers.
Lifecycle analysis identifies purification waste and solvent emissions as key improvement areas. Stakeholder pressure has accelerated green chemistry assessments across all formulation and process design decisions. Enabling trace mineral sourcing and waste stream valorization reduces environmental impact and supports certifications demanded by international clients. Operational safeguards target reduction in residual solvent and by-product formation, especially in grades destined for sensitive markets. The technical approach balances raw material cost, regulatory drives, and market access requirements.
Manufacturer-side technical personnel engage directly with client R&D and process optimization teams to clarify grade selection, regulatory compliance implications, and advanced dispersion challenges. Support includes guidance on handling, storage protocol selection, and the impact of environmental controls on product stability and downstream integration. Response speed and technical depth depend on the complexity of the application and the specificity of customer requirements.
Application specialists assist in adapting zinc pyrithione grades to customer processes, including test batch evaluation, process parameter guidance, and troubleshooting dispersion or compatibility issues within customer matrices. This extends to optimization of processing conditions—temperature, mixing order, and additive sequence—impacting efficacy and shelf life in bulk formulated products. Recommendations are tailored according to customer’s typical batch sizes, automation level, and product usage patterns.
Post-sale, manufacturers maintain product traceability records and batch documentation to support customer regulatory filings and downstream incident investigations. Ongoing batch feedback is integrated into quality improvement cycles. Return and complaint handling procedures drive root cause analysis focused on process-critical control points such as precursor quality shifts, equipment fouling, or shipment environmental variation. Commitment extends to supporting customers through regulatory changes impacting allowed use or labelling requirements.
Zinc Pyrithione production requires specialized handling, precise chemical processing, and modern facility controls. At our plant, integrated design of the reactor lines and automated dosing equipment form the backbone of our daily operations. Every batch starts from high-purity zinc salts and pyrithione intermediates, combined under controlled thermal and pH conditions. By managing the entire process internally, from raw material handling to final drying and micronization, we ensure that the active content and particulate profile match expectations set during approval testing.
Paint and coatings formulators look for Zinc Pyrithione’s broad-spectrum antimicrobial properties to keep treated surfaces free from microbial growth and discoloration. Our output meets low-micron specifications critical for stable dispersion in resin systems. In leather treatment and textile processing, the product resists hydrolysis and binds evenly through repeat finishing cycles. Shampoo and personal care manufacturers adopt strict ingredient screening, and our documentation records full lot traceability and compositional breakdowns. Water treatment plants require consistently high dispersibility, which we address through dedicated slurry supply lines and prompt dispatch routines.
Repeated process audits and real-time spectroscopic testing prevent batch drift. Staff chemists pull material samples at every filtration and drying stage. Particle size, moisture content, and assay values undergo routine tracking documented in multi-year production logs. End-users rely on the repeated outcome of these controls. Deviations are addressed at their source and carry through to corrective actions on the plant floor, not just flagged in paperwork.
We manage our own packaging house to fill and seal fiber drums, HDPE drums, or bagged units. Automated weigh and fill stations reduce contamination risk and support bulk customization. For liquid applications, tanker and IBC loading direct from the blending tank streamlines downstream integration for chemical and coatings users. Our teams oversee final export crating and labeling for all industrial and regulatory zones with full compliance on documentation, weight, and markings. Shipments run on schedule with in-factory dispatch tracking instead of relying on third-party logistics alone.
Industrial R&D teams visit our plant to test product compatibility under real process conditions. Process engineers analyze downstream blend behavior, filtration properties, and storage stability. When buyers come with new process routes or stricter end-use requirements, factory technical managers provide data from both lab and pilot runs. We keep application files on proven compatibilities and failure modes from various industries. This direct feedback loop helps us adapt production for unique buyer needs while controlling scope and quality.
Direct manufacturers deliver greater transparency in lead times, specification changes, and cost base. Buyers gain a single point of contact for technical and post-delivery queries, which means faster corrective action or formulation support. Procurement teams see lower variability in delivered lots compared to distributor models. Onsite packaging and volume flexibility help managers match contract sizes to changing factory demands. By investing in updated lines and staff training, we protect clients from off-spec inventory risk and volatile market sourcing. Long-term buyers benefit from our continuous process improvements and system upgrades, which build predictable and dependable supply chains for high-stakes industrial production.
At our manufacturing site, Zinc Pyrithione production draws from decades of chemical formulation experience. In an industry pressed for both performance and safety, the purity and form of any active ingredient matter to everyone involved in end-use applications. Our zinc pyrithione targets a purity level of 99% or more on a dry basis, backed by batch-to-batch laboratory analysis. We rely on this high purity because downstream effects in coatings, personal care, or industrial biocides settle directly on the quality of the base compound. We keep our process tightly controlled, with trace metal contamination and by-product formation well below recognized thresholds. Consistency across production runs brings reliable performance in the field, a demand we treat as a responsibility—not an option.
In terms of appearance and handling, the common inquiry always revolves around whether this molecule is delivered as a powder or a liquid. Our standard form is a finely milled, off-white to pale yellow powder. This form remains stable under conventional storage conditions and offers versatility to formulators requiring precision dosing in a dry blend. Particle control at our factory helps ensure minimal dust and smooth wetting during integration into water-based and solvent-based formulations. Dry powder simplifies long-haul transport, especially when shelf life and stability count for distributors and global end users.
We have invested in the equipment needed for slurry and concentrate production to meet industry requests for liquid alternatives. Customers involved in personal care and industrial applications occasionally prefer an aqueous dispersion for their manufacturing convenience, and we respond with prepared suspensions at specified concentrations. These dispersions use stabilized carrier systems that maintain suspension homogeneity, reducing settling or phase separation during storage. Liquid dispersions come filtered and quality-assured, with documentation on microbial and physical stability for peace of mind in regulatory environments. Packaging lines accommodate both powder bags and liquid drums, with full traceability for compliance checks.
Pursuing near-absolute purity is both a chemical necessity and a market-driven expectation. Trace elements or process residues present headaches for formulators who need predictable behavior in antimicrobial or anti-dandruff finished products. Variability here can trigger reformulation, recall, or product loss on a large scale, which cuts into operational budgets, reputation, and even regulatory status. From raw material selection to final sieving and packaging, our team monitors each stage in real time, running sample analyses that include HPLC, XRD, and wet chemical verification. The feedback loop between production and QC ensures the documented purity reflects the actual on-site analytic outcomes, not just a typical value from one batch in the past.
Market movements often drive buzz about greener synthesis, reduced heavy metal content, and next-generation preservatives. Our continuing R&D supports lower-environmental-impact routes and purity enhancement without chasing numbers that lack verification. Investments in process automation and waste capture further keep purity margins tight, enabling us to offer what our clients expect, not just what’s easy to make. In all, the aim remains the same: technical accuracy, product safety, and ease of incorporation for demanding process engineers at the formulations stage.
At our facility, discussions about zinc pyrithione always sharpen focus. Bulk customers expect clarity on minimum purchase requirements and transparent timelines. As the direct manufacturer, we recognize how these factors shape planning and project stability across many industries, particularly those operating under strict delivery and quality protocols.
Determining the minimum order quantity for zinc pyrithione isn't just about batch economics. It draws on line efficiency, equipment schedules, and inventory management. From our experience, MOQ usually reflects the smallest batch size our continuous production system can turn out without compromising material qualities or process consistency. For zinc pyrithione, production runs require specific preparation and cleaning parameters due to the nature of the active ingredient. This inherently creates a threshold below which running the line simply wouldn’t make sense technically or economically.
By setting a practical MOQ, we ensure tight control over attributes such as particle size, moisture levels, and purity. A stable order size preserves those characteristics and prevents operational swings that could impact downstream performance for customers, especially those incorporating zinc pyrithione in regulated formulations. We provide MOQ figures that reflect the real numbers from our actual batch runs and not simply arbitrary figures to discourage small purchases—every tonne reflects real process needs.
Lead time for bulk zinc pyrithione isn’t just a shipping promise; it’s built on our actual manufacturing steps. After a firm order arrives, the sequence begins with raw material checks, batch scheduling, and specialized mixing stages. Zinc pyrithione involves a finely controlled synthesis—quality checks at every step protect performance. We also factor in time for laboratory testing, independent analysis, and controlled drying and milling to meet both tight specification and shipment requirements.
In our experience, lead time can stretch during peak demand or when clients request technical customization. Being direct in communication, we explain current line capacity and work to match production slots to the delivery windows that keep clients in motion. Large-scale orders sometimes require multiple batch runs; our logistics team streamlines these into consolidated shipments where possible.
Zinc pyrithione use in applications like paints, coatings, textiles, and personal care demands a stable and predictable manufacturing process. Any break in supply or erratic lead time puts down-the-line production at risk. By providing firm, factory-grounded answers on MOQ and lead time, we help customers maintain project timelines and regulatory compliance.
For buyers planning significant procurement, immediate access to these data points simplifies internal decision-making. Supply chain managers build orders around actual batch size and cycle time; R&D and regulatory teams depend on documented consistency and on-time delivery to keep audits and launches moving ahead. We share up-to-date lead time estimates and minimum batch numbers based on ongoing shop-floor experience.
Bulk procurement rarely follows a one-size-fits-all approach. Changes in market conditions, raw material cost swings, and end-user requirements all affect demand levels. We work with clients to develop long-term supply programs that ease the pressure of monthly fluctuations, allowing for better production planning on both sides. Forecasted order schedules, technical documentation, and direct communication help keep surprises to a minimum.
In every case, offering accurate MOQ and lead time information—not just as policy points, but as reflections of our current production—strengthens partnerships and protects the value of the supply chain from start to finish.
Direct involvement in Zinc Pyrithione manufacturing comes with real regulatory responsibilities. Compliance stays at the core of professional operations—especially with an active substance like Zinc Pyrithione, which now faces tight international oversight. Working in the thick of this field every day, we see regulatory rules not as paperwork, but as concrete standards shaping routine production, shipment, and documentation.
REACH Regulation keeps evolving. European chemical law requires full registration, evaluation, authorization, and restriction for substances like Zinc Pyrithione. Its registration brings ongoing work—not only does our team manage the substance file, we track permissible uses and monitor updates in the restriction annexes. With Zinc Pyrithione’s status as a former biocidal active and its current regulatory landscape in the EU, compliance means keeping substance dossiers ready and staying equipped for live reporting during audits. Certificates of compliance draw on our own registration, not from third-party sources. For each batch shipped, we provide a detailed compliance statement, tied directly to our own registration number.
US market access falls under TSCA. Our facilities participate directly in EPA reporting and PMN registration. Each year, we submit the Chemical Data Reporting (CDR) for our annual production volumes and detailed composition records. TSCA reviews detail every ingredient and impurity. Recent updates in EPA guidance prompted us to refresh our documentation, updating Safety Data Sheets (SDS) and confirming no use-restrictions apply to the applications our customers require. Consistent labeling, shipping, and technical documentation become second nature as a result of decades running regulated production lines.
Asia-Pacific frameworks create additional layers—such as K-REACH in Korea and the Japanese Chemical Substances Control Law. We keep registration records for each jurisdiction where we maintain market presence, and always keep summary reports on hand for our trading partners. This means actual registration numbers, not blanket claims. Documentation gets reviewed before upload to customs systems or customer procurement uploads. Every certificate showing compliance with K-REACH or Chinese MEE filings directly stems from our production file and our registration under those countries’ regulations.
Batch traceability matters for clients. As direct manufacturers, we record batch numbers, certificates of analysis (COA), and full regulatory compliance records for every shipment. These records draw on our plant’s master batch documentation and lab analytics performed in-house—often starting with the incoming raw zinc and extending through the finished pyrithione salt’s dispatch. Whether a customer asks for a European Union, US, or Australian compliance certificate, the answer comes straight from our own regulatory file, supported by our plant laboratory’s analytical data.
Biggest ongoing challenge: Regulations do not stand still. Reach registration status changed for Zinc Pyrithione in light of restrictions on leave-on cosmetics in Europe. Biocidal applications have new rules under ongoing review in many geographies. As direct producers, we keep expert regulatory staff who maintain dialogue with authorities and monitor each proposed update. Any time a market tightens its allowable uses, we inform our customers in advance so downstream users avoid supply issues. No shipment leaves our facility without fresh documentation to match the destination country’s requirements.
Our experience as the producer ensures every spec, label, and certificate stands ready for scrutiny. From compliance statements to detailed technical documentation, our files always align with real regulatory filings. Every market, every batch, every time.
For product inquiries, sample requests, quotations or after-sales support, please feel free to contact me directly via sales7@bouling-chem.com, +8615371019725 or WhatsApp: +8615371019725
