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Tannic acid (electronics grade) |
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C76H52O46 |
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1401-55-4 |
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Application: the material of electronics chemistry, manufacturing tannin iron ink, anti-rust of metal, the raw material of pharmaceutical industrial |
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Synonym: Tannic acid Tannin Chinese gallnut tannic acid Molecular formula and weight: C76H52O46=1701.18 CAS: 1401-55-4. Molecular formula and molecular weight: C76H52O46=1701.18
Characteristic£ºlight yellowish to brownish powder, soluble in 1 part of water or alcohol, soluble in acetone, insoluble in chloroform or aether.
Main technical specifications: Item Standard content of Tannic Acid (dry substance), %: ¡Ý99.5 Chloride, ppm: ¡Ü4.4 Pb, ppm: ¡Ü2.0 Fe, ppm: ¡Ü2.0 sulfate, ppm: ¡Ü3.0 moisture, %: ¡Ü10.0
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