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| CAS号 : | 2019-34-3 |
精确质量 : | 184.02900 |
| 分子式 : | C9H9ClO2 |
logP : | 2.35720 |
| 分子量 : | 184.62000 |
PSA : | 37.30000 |
3-(4-氯苯基)丙酸 | |
3-(4-Chlorophenyl)propanoic acid | |
2019-34-3 | |
C9H9ClO2 | |
184.62000 | |
37.30000 | |
2.35720 | |
184.02900 |
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1.558
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白色晶体
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139.2ºC
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306.6ºC at 760 mmHg
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127-131 °C(lit.)
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1.27 g/cm3
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0.000333mmHg at 25°C
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2
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S26-S36/37/39
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Xn
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R22; R41
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2916399090
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品名, 成分含量, 用途, 丙烯酸、丙烯酸盐或酯应报明包装 |
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2916399090 其他芳香一元羧酸. 增值税率:17.0% 退税率:9.0% 监管条件:无 最惠国关税:6.5% 普通关税:30.0% |
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2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
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2916399090. Other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives. General tariff: |
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由对氯苯丙烯酸电解还原而得。还原在是装有渗透性隔膜容器的双层电解槽中进行。用水银盖满外槽,槽底作为阴极,阳极是成螺旋形的铅片悬在内槽当中。阴极电解液中装有电动搅拌器,开始以7-8%硫酸钠溶液分别装入内外两槽,然后以0.5-0.7mol/L的比例,将对氯肉桂酸悬浮在外槽电解液中,开动搅拌器,以每摩尔对氯肉桂酸对0.6-0.8mol氢氧化钠的比例,在阴极电解液中加入碱溶液。接通直流电源进行电解还原。实验中所用电压10-20V,电流约0.8-3A。还原1mol的对氯肉桂酸约需60-65A·h电量。还原完毕,用倾泻法或虹吸法使阴极电解液和水银分开,滤出微量不溶物,用过量硫酸(1 | |
除草剂麦敌散的中间体。 |
