Product Specifications
| Prod Model: |
Registry number: 149-91-7 |
Product Description
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 in 85 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, food and 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 electronics field.
Packaging: 25KGs/drum
