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Synonyms: gallic acid
Chemical name: 3,4,5-trihydroxybenzoic acid
Molecular formula and molecular weight: C7H8O6; 188.13
Properties: white or grayish white crystalline powder, and could be dissolved in 85 shares of water, 6 shares of ethyl alcohol, 2 shares of boiling water, and could be slightly dissolved in the diethyl ether.
Quality index: Conforming to European Standard-93 (First Grade), Japanese National Standard (JIS) Standard (First Grade), 21st edition of USA Pharmacopoeia (Top-Class Product).
Uses: Widely used in such industries as pharmaceuticals, dyes, chemicals and organic synthesis, as well as in the analysis of rare metals.
Storage: Store in an airtight container.
Package: Inner plastic and outer woven bags, 25 kg net weight per bag.
Quality standard:
|
Content% |
≥99.0 |
|
Sulfate ppm |
≤10 |
|
Tannic acid test ppm |
≤1.0 |
|
Dry weightlessness% |
≤10.0 |
|
Burning residue% |
≤0.1 |
|
Turbidity ppm |
≤10 |
|
Chromatic number |
≤200 |
