Other name:gallnut acid
Chemical name:3,4,5-Trihydroxybenzoic acid
Mol. form and Mol. wt.: C7H8O6 188.13
Description:A white or white crystalline powder. Soluble in 85 proportions of water, 6 alcohol and 2 boil-water, slightly soluble in ether.
Specification: Comply with the requirements of European-93 (1-class) Standard, JIS (1-class)standard, U.S.P.21 edition(1985), superior grade.
Technical data:
Purity: % ≥99
Sulfate: ppm ≤10
Tannic acid test: ppm ≤1.0
Loss on drying: % ≤10.0
Residue on ignition: % ≤0.1
Turbidity: ppm ≤10
Color number: fan ≤200
Usage:Mainly used in medicine、dyestuff、chemical and synthesis industry ,also used in analysis in rare metal.
Storage:keep in a well-closed container.
Packing: weave bag with plastic bag inside, N.W. 25kg/bag.