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| CAS号 : | 110-04-3 |
精确质量 : | 189.96100 |
| 分子式 : | C2H6O6S2 |
logP : | 0.92360 |
| 分子量 : | 190.19500 |
PSA : | 125.50000 |
1,2-乙二磺酸 | |
1,2-Ethanedisulfonic Acid Dihydrate | |
110-04-3 | |
C2H6O6S2 | |
190.19500 | |
125.50000 | |
0.92360 | |
189.96100 |
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灰白色至灰色-米色晶体和粉末
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109 °C
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soluble
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1.928g/cm3
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Stable at normal temperatures and pressures.
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Keep tightly closed. Store in a cool dry place.
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8
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S26-S36/37/39-S45-S27
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II
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2585
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C
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R34
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2904100000
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HS:2904100000.Derivatives containing only sulpho groups, their salts and ethyl esters |
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品名, 成分含量, 用途 |
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2904100000 仅含磺基的衍生物及其盐和乙酯。监管条件:无。增值税率:17.0%。退税率:9.0%。最惠国关税:5.5%。普通关税:30.0% |
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2904100000 derivatives containing only sulpho groups, their salts and ethyl esters。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0% |
1,2-二氯乙烷与亚硫酸钠进行置换反应,生产乙烷二磺酸二钠盐。将钠盐溶于水,以2.5~3kg/h的速度通过装有001×7型强酸性苯乙烯系阳离子交换树脂(732#)的交换柱,分段收集交换液,PH=3~1部分含有90%以上的乙烷二磺酸,减压浓缩去水呈糖浆状。100℃干燥,得成品。 | |
医药中间体。用于非麻醉性止咳药咳美芬的生产。 |
