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Physicochemical properties: white crystal, easy deliquescence, soluble in water and glycerin, insoluble in ethanol and ethyl ethe r.
Specific gravity: (17/4οC) 1.67
Melting point: 152 οC (disassemble )
Use:This product is mainly used as a reducing agent and imaging agent, organic synthesis for the preparation of oxime, and also as the raw material for the synthesis of anti-cancer drugs (hydroxyurea), sulfa drugs (sinomin), anti-cold medicine and pesticide(methomy l). It is used as depolarizer In electro-analysis, in the synthetic rubber industry as non-staining short-term terminating agent, etc.
Item | Spec 1 | Spec 2 | Spec 3 |
Appearance | White crystal | White crystal | White crystal |
Content % ≥ | 98.00 | 99.00 | 99.00 |
Moisture % ≤ | 0.40 | 0.30 | 0.30 |
Sulphate % ≤ | 0.02 | 0.005 | 0.003 |
Fe % ≤ | 0.0005 | 0.0003 | 0.0003 |
Heavy metal% ≤ | 0.0005 | 0.0003 | 0.0003 |
China
