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Chemical name : 3,4,5-trihydroxybenzoic acid. Molecular weight : 188.13. Property : a white or pale colored crystalline powder. Dissolve in 85 parts of water, 6 parts alcohol, 2 parts of boiling water, slightly soluble in aether. Quality standard : meeting the requirements of european-93(1-class)standards, jis(1-class)standards, u.s.p.21 edition(1985), superior grade. Usage : gallic acid is used in ***ermination of bismuth, cerium, copper, nitrite phosphorus, silver thorium and titanium, etc. It is widely |