Gallic acid

Gallic acid:

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Properties:
Product Name: Gallic acid, Gallnut acid
Chemica Name: 3,4,5-Trihydroxybenzoic acid
Characteristic: 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.
Molecular Formula: C₆H₂(HO)₃.C00H.H₂O
Molecular Weight: 188.13
CAS No.: 149-91-7
Specification: Gallic acid: 99%
Packing: Packed in paper-drums and two plastic-bags inside or as per your request.
Net weight: 25kg/drum
Stored in a cool and dry well-closed container, keep away from moisture and strong light/heat.

Description and function:
Gallic acid or 3,4,5-trihydroxybenzoic acid (tr'hdrk`sbnz`k), C₆H₂(HO)₃.C00H.H₂O, colorless crystalline organic acid found in gallnuts, sumach, tea leaves, oak bark, and many other plants, both in its free state and as part of the tannin  molecule (see tannin,tannic acid, or gallotannic acid, astringent vegetable product found in a wide variety of plants. Sources include the bark of oak, hemlock, chestnut, and mangrove; the leaves of certain sumacs; and plant galls.
Since gallic acid has hydroxyl groups and a carboxylic acid group in the same molecule, two molecules of it can react with one another to form an ester, digallic acid. Gallic acid is obtained by the hydrolysis of tannic acid with sulfuric acid. When heated above 220^oC; gallic acid loses carbon dioxide to form pyrogallol, or 1,2,3- trihydroxybenzene, C₆H₂(HO)₃.COOH.H₂O, which is used in the production of azo dyes and photographic developers and in laboratories for absorbing oxygen.

 Usage:
Gallic acid has been widely in organic synthesis, pharmaceutical, ink manufacturing, dyestuff, national defence, food and light industries.

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Product Categories : Herbs and Plant Extract