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| CAS号 : | 870-72-4 |
精确质量 : | 133.96500 |
| 分子式 : | CH3NaO4S |
logP : | -0.43780 |
| 分子量 : | 134.08700 |
PSA : | 85.81000 |
羟甲基磺酸钠 | |
Formaldehyde Sodium Bisulfite | |
870-72-4 | |
CH3NaO4S | |
134.08700 | |
85.81000 | |
-0.43780 | |
133.96500 |
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白色固体
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184 °C
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184ºC
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200 °C (dec.)(lit.)
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800 g/L (20 ºC)
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Stable under normal temperatures and pressures.
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Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Store protected from moisture.
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PB2200000
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1
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S24/25
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2942000000
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R36/37/38
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2933990090
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2933990090. 其他仅含氮杂原子的杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0% | |
2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
<p>将蒸馏水及甲醛溶液加入反应锅内,冷却至15℃以下,搅拌下分批加入亚硫酸氢钠,控制温度在60-65℃反应20min,用氢氧化钠溶液控制pH9左右。反应完毕,加盐酸使pH达3左右。加活性炭脱色,过滤,滤液冷却后加乙醇析出固体,放置,次日过滤,乙醇洗涤,干燥,得成品。</p> | |
<p>镀镍光亮剂，能提高光亮和整平效果。异烟肼硫钠、癌敌等中间体。</p> |
