|
HS Code |
876354 |
| Iupac Name | 1-(2-hydroxynaphthalen-1-ylazo)naphthalene-2,4-disulfonic acid |
| Molecular Formula | C20H14N2O7S2 |
| Molecular Weight | 458.46 g/mol |
| Appearance | Reddish-brown powder |
| Solubility In Water | Soluble |
| Melting Point | Decomposes above 300°C |
| Cas Number | 5461-08-9 |
| λmax | 520 nm (in aqueous solution) |
| Ph Range Of Color Change | 3.5–4.5 |
| Common Uses | Metal ion complexation indicator (especially for calcium and magnesium) |
| Stability | Stable under recommended storage conditions |
| Synonyms | NAPHTHOL BLUE BLACK; Naphthol AS-D |
| Storage Conditions | Store at room temperature, keep tightly closed, protect from light |
| Hazard Statements | May cause eye, skin, and respiratory irritation |
| Ec Number | 226-748-7 |
As an accredited 1(2-hydroxy-1-naphthylazo)2-*naphthol-4-sulfonic factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The 25g packaging is a tightly sealed amber glass bottle with a clear label stating ‘1(2-hydroxy-1-naphthylazo)2-naphthol-4-sulfonic acid.’ |
| Container Loading (20′ FCL) | 20′ FCL: 1(2-hydroxy-1-naphthylazo)2-naphthol-4-sulfonic acid loaded securely in 25kg drums, palletized, moisture-protected, compliant with regulations. |
| Shipping | **Shipping Description:** 1-(2-Hydroxy-1-naphthylazo)-2-naphthol-4-sulfonic acid should be shipped in sealed, chemical-resistant containers under dry conditions. Avoid exposure to direct sunlight, extreme temperatures, and moisture. Label containers appropriately according to regulatory requirements. Handle with care, using appropriate personal protective equipment (PPE). Consult the Safety Data Sheet (SDS) for specific transport guidelines and hazard classifications. |
| Storage | Store **1-(2-hydroxy-1-naphthylazo)-2-naphthol-4-sulfonic acid** in a tightly closed container in a cool, dry, and well-ventilated area, away from incompatible materials such as strong oxidizers and acids. Protect from moisture, direct sunlight, and physical damage. Keep the storage area equipped with spill control materials and follow all relevant safety regulations for handling chemicals. |
| Shelf Life | Shelf life of 1(2-hydroxy-1-naphthylazo)2-naphthol-4-sulfonic acid: Stable for at least 2 years when stored tightly closed, protected from light. |
Competitive 1(2-hydroxy-1-naphthylazo)2-*naphthol-4-sulfonic prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615371019725 or mail to sales7@boxa-chem.com.
We will respond to you as soon as possible.
Tel: +8615371019725
Email: sales7@boxa-chem.com
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