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| CAS号 : | 627-03-2 |
精确质量 : | 104.04700 |
| 分子式 : | C4H8O3 |
logP : | 0.10750 |
| 分子量 : | 104.10500 |
PSA : | 46.53000 |
乙氧基乙酸 | |
Ethoxyacetic acid | |
627-03-2 | |
C4H8O3 | |
104.10500 | |
46.53000 | |
0.10750 | |
104.04700 |
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n20/D 1.419(lit.)
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透明略黄色液体
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208 °F
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97-100 °C11 mm Hg(lit.)
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1.102 g/mL at 25 °C(lit.)
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soluble
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Stable. Combustible. Incompatible with strong oxidizing agents.
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Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area. Keep containers tightly closed.
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AH3600000
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3
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8
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S26-S36/37/39-S45
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III
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UN 3265 8/PG 2
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C
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R34
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2918990090
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HS: 2918990090 Other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives |
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品名, 成分含量, 用途 |
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2918990090. 其他含其他附加含氧基羧酸（包括酸酐、酰卤化物、过氧化物和过氧酸及该税号的衍生物）. 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:30.0% |
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2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
将氯乙酸与无水乙醇配成的溶液逐次加入乙醇钠-乙醇溶液中，加料毕，缓缓加热10min，然后用直接水蒸气蒸出过量乙醇，将水溶液冷却，加入浓盐酸，滤除氯化钠。滤液用乙醚提取，提取液蒸除乙醚后，进行减压蒸馏，收集109-111℃（2.27-2.40kPa）馏分，得乙氧基乙酸，收率74%。 | |
有机合成中间体。 |
