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Chemical name: 1,2,3-trihydroxybenzene.
Synonyms: pyrophosphate, pyrogallol
Molecular formula and molecular weight: C6H3(OH)3； 126.11
Property: white crystalline powder with gloss. It could be dissolved in 2 shares of water, 1 share of ethyl alcohol or 2 shares of diethyl ether.
Quality index: Comply with the requirements both U.S.A." Reagent Chemical and Standard" by Joseph Rosin Fifth-edition and JIS K8780 standard.
Uses: Widely used in fine chemical industry, for the synthesis of new photosensitive materials, food preservation, disease of heart head blood-vessel treatment drugs, antineoplastic drugs, alzheimer's drugs, medicines for mental disorders, textile printing and dyeing, light industry, daily chemical, color printing plate-making, microelectronics industry, rare metals, gas analysis, photographic development etc, to absorb carbon monoxide, and so on.
Storage: Store in an airtight container.
Package: Woven bags for external use, plastic bags for internal use, 25 kg net weight per bagl.
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Quality standard |
Industrial grade |
CP grade |
AR grade |
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Appearance |
White powder |
White powder |
White powder |
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Content% |
≥99.20 | ≥99.50 | ≥99.80 |
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Water solubility |
Clear and transparent |
Clear and transparent |
Clear and transparent |
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Melting point |
131-135 | 132-135 | 132-135 |
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Burning residue% |
≤0.025 | ≤0.02 | ≤0.02 |
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Chloride% |
≤0.002 | ≤0.001 | ≤0.001 |
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Sulfate% |
≤0.005 | ≤0.005 | ≤0.005 |
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Heavy metal ppm |
≤5.0 | ≤5.0 | ≤5.0 |
