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Lingwu, Yinchuan, Ningxia, China
© 2025 Sinochem Nanjing Corporation, All Right Reserved
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HS Code |
690618 |
| Name | Tannins |
| Chemical Formula | Variable (commonly C76H52O46 for tannic acid) |
| Appearance | Yellow to brownish amorphous solid |
| Solubility In Water | High |
| Taste | Astringent |
| Origin | Found in many plants, especially bark, leaves, and unripe fruit |
| Molecular Weight | Variable (tannic acid: ~1701.2 g/mol) |
| Classification | Polyphenolic biomolecule |
| Melting Point | 210–215 °C (tannic acid, decomposes) |
| Ph Range | 3-7 (in aqueous solution) |
| Applications | Leather tanning, wine production, inks, medicine |
| Toxicity | Generally low, but large doses may be harmful |
As an accredited Tannins factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Tannins are packaged in a sealed 500g plastic container, featuring a secure screw cap and clearly labeled with product details. |
| Storage | Tannins should be stored in tightly sealed containers, away from light, heat, and moisture to prevent degradation. Ideally, storage should be in a cool, dry, and well-ventilated area, separated from incompatible substances such as strong oxidizers. Label containers clearly and avoid exposure to air to minimize oxidation and maintain tannin stability and effectiveness during prolonged storage. |
| Shipping | Tannins should be shipped in tightly sealed containers, protected from moisture and direct sunlight. Ensure labeling complies with local and international regulations. Keep away from strong oxidizers and store in a cool, dry area. During transport, secure containers to prevent damage and accidental release. No special hazard classification is typically required. |
Competitive Tannins prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615380400285 or mail to admin@sinochem-nanjing.com.
We will respond to you as soon as possible.
Tel: +8615380400285
Email: admin@sinochem-nanjing.com
Lingwu, Yinchuan, Ningxia, China
