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Chemical Name: 3,4,5 -TrGallic Acidihydroxy Benzoic Acid
CAS NO.: 149-91-7
Molecular Formula and Weight:C7H6O5
Appearance:White or grayish white crystalline powder
Property:solved in 85 shares of water, 6 shares of ethanol, 2 shares of boiling water; slightly soluble in aether.
Specification:
|
spec |
Industry grade |
Pharm grade |
Food grade |
|
content |
≥99% |
≥99.5% |
≥99.5% |
|
Drying loss |
≤10% |
≤10% |
≤10% |
|
Ignition residue |
≤0.1% |
≤0.1% |
≤0.1% |
|
APHA |
≤180 |
≤50 |
≤0.1% |
|
Arsenic |
---- |
0.0003% |
0.0003% |
|
Water soluble test |
---- |
clear |
clear |
|
Gallotannic acid test |
---- |
clear |
clear |
|
Sulphate(SO4-) |
---- |
0.01% |
0.02% |
|
Chloride(CL-) |
---- |
0.01% |
0.02% |
|
Chroma |
---- |
180 |
250 |
|
Packing |
PP+PE bags of 25 net each. |
25kg/paperboard drum |
25kg/paperboard drum |
Storage:Avoid moisture and light; sealed in storage.
