Gallic acid Anhydrous
Product Name:gallic acid
Chemical name: 3,4,5-trihydroxybenzoic acid
Molecular formula: C7H6O5.H2O
Molecular Weight: 188.13
CAS NO: 149-91-7 (anhydrous)
Quality Standard: conform to Enterprise Standard
Iterms | Specification |
Loss on drying | ≤0.5% |
APHA | ≤250 |
Ignition residue | ≤0.1% |
Turbidity | ≤10ppm |
Tannic acid | ≤1ppm |
Sulphate | ≤10ppm |
Content | ≥99.0% |
Water solution | Clear |
Industrial scale | 100T/Y |
Properties: white or white crystalline powder, soluble in 85 parts of water, 6 parts of ethanol, 2 parts of boiling water, slightly soluble in ether.
Usage: This product is widely used in medicine, dyes, chemicals and other industrial organic synthesis, is also used for the analysis of rare metals.
Storage: Aviod moisture and sunlight ,keep in a well-closed container.
Packaging: Woven bag with a plastic bag inside, net weight 25 kg.
Gallic acid has many uses in pharmacy, ink, dye, food, light industry and organic synthesis. Gallic acid and ferric ion form blue black precipitate, which is the raw material of blue black ink; It is also used in leather industry; It can also be used as photographic developer. Propyl gallate as antioxidant can be used in edible oil to prevent odor deterioration. In medicine, gallic acid is a hemostatic astringent and a local stimulant of mild chemical book. Application: it has antibacterial effect and can treat bacillary dysentery. It has the functions of astringency, hemostasis and antidiarrhea. It can be used as preservative. It can prepare pyrogallic acid, medicine, ink, mordant dye and explosion-proof agent. It is also used as a developer and analytical reagent for the detection of free inorganic acids, dihydroxyacetone, alkaloids and metals. It can be used as preservative, medium dye and explosion-proof agent.
IUPAC
3,4,5-trihydroxybenzoic acid
Matter Classification
organic
Appearance
White crystalline powder
Acidity and Basicity
acidness