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Gallic Acid
Alternate name:3,4,5- trihydroxybenzoic acid
Description: White or gray white crystalline powder, losing crystal water at 100ºC. Soluble in acetone, ethyl acetate, 85-share water, 6-share ethanol, 2-share boiling water, slightly soluble in cold water, insoluble in benzene or trichloromethane.
Specification:
Index name |
Index
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Top quality of Japanese standard
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Top quality of national standard
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Content % ≥
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98.5
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98.5
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Water solubility test
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Yellowish, clear
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Yellowish, clear
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Loss on drying % ≤
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10.0
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10.0
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Residue on ignition % ≤
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0.05
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0.10
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Sulphate % ≤
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10.0 PPM
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0.02
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Tannin test ≤
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1.0 PPM
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1.0 PPM
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Turbidity ≤
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10.0 PPM
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10.0 PPM
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Chromatic number
APHA ≤
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150
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180
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Uses: Industrial gallic acid used in analyzing and testing bismuth, cerium, copper, nitryl, phosphorus, silver, thorium and titanium etc.. It is also widely used in the fields including organic synthesis, pharmaceutical, ink, dyes, national defense and food etc..
Packing and storage: in cardboard drum or Plastic woven bag; stored in sealed container
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