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| CAS号 : | 24332-20-5 |
精确质量 : | 120.07900 |
| 分子式 : | C5H12O3 |
logP : | 0.25170 |
| 分子量 : | 120.14700 |
PSA : | 27.69000 |
1,1,2-三甲氧基乙烷 | |
1,1,2-Trimethoxyethane | |
24332-20-5 | |
C5H12O3 | |
120.14700 | |
27.69000 | |
0.25170 | |
120.07900 |
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n20/D 1.392(lit.)
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74 °F
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56-59 °C56 mm Hg(lit.)
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0.932 g/mL at 25 °C(lit.)
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3
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3.2
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S26-S36
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III
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UN 3271 3/PG 3
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Xi
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R10; R36/37/38
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2909199090
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品名, 成分含量, 用途 |
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2909199090. 其他无环醚及其卤化衍生物（包括磺化，硝化或亚硝化衍生物）. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:5.5%. 普通关税:30.0% |
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2909199090. other acyclic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0% |
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HS:2909199090.Other acyclic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives. General tariff:5.5% |
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由乙醛经缩合、氯化、醚化而得。将乙醛缓缓加入甲醇中，于38-40℃通氯。然后在40-43℃反应3h。冷至室温用石灰中和至pH值为7，静置分层，上层即含量约80%的氯乙醛缩二甲醇。将其加入40%的甲醇钠中，在100℃、约0.2MPa压力下反应6h。蒸出甲氧基乙醛缩二甲醇，将蒸出液再精馏即得成品，收率50%以上。 | |
有机合成中用作中间体。 |
