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By certification 
Molecular formula: BC6H5O7·H2O
Molecular weight: 217.97
Properties: 4.96% boron, 86.77% citric acid, 8.26% crystallization water, purity >99% (food grade), dissolved in water, is one kind of food and feed additive.
Packing: tablets (0.5mg/tablet, 1-2 tablets one time, 3 times a day), granules, capsules, oral solution.
