Synonyms: Gallic acid, Gallnut acid
Chemical name: 3, 4, 5-Trihydroxybenzoic acid
Mol. Formula and Mol. Weight: (HO)3C6H2COOH H2O=188.13
Registry number: 149-91-7

1. Industrial grade

Description: A white or pale colored crystalline powder. Soluble in85 parts of water, 6 parts of alcohol, 2 parts of boiling water.Slightly soluble in ether.

Item: Technical grade
Drying loss: ≤ , 10.0%
Content:  ≥ 98.0%

Item: I-grade
Solubility: Passes test
Drying loss: ≤ 10.0%
Ignition residue:  ≤ 0.1%
Content:  ≥ 98.5%
Sulfates(SO4): ≤ 0.05%

Item: SP-grade
Solubility: Passes test
Drying loss: ≤ 10.0%
Ignition residue:   ≤ 0.05%
Content:  ≥ 99.0%
Sulfates(SO4): ≤ 0.02%

Uses: Gallic acid has been widely in organic synthesis,pharmaceutical, ink manufacturing, dyestuff, national defence, foodand light industries.

Packaging: A net weight of 25kg, packed in woven plastic bags.Export product packed in paperbord drums of 25kg net each.

2. Electronics grade

Specification
Appearance  White crystal powder
Assay%  ≥ 99.0
Loss on drying%  ≤ 10.0
Residue on ignition%  ≤ 0.1
Acid value(mg KOH/g)  290-330
metallic impurities:
AI ppm  ≤ 1.0
Ca ppm  ≤ 1.0
Cu ppm  ≤ 1.0
Fe ppm  ≤ 1.0
Pb ppm  ≤ 1.0
Mg ppm  ≤ 0.5
Ni ppm  ≤ 0.5
K ppm  ≤ 0.5
Na ppm  ≤ 0.5
Zn ppm  ≤ 1.0
Cr ppm  ≤ 0.5
Mn ppm  ≤ 0.5

Uses: Additive materials for fine chemistry and electronicsfield.
Packaging: 25KGs/drum