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| CAS号 : | 123-73-9 |
精确质量 : | 70.04190 |
| 分子式 : | C4H6O |
logP : | 0.76140 |
| 分子量 : | 70.08980 |
PSA : | 17.07000 |
巴豆醛 | |
crotonaldehyde | |
123-73-9 | |
C4H6O | |
70.08980 | |
17.07000 | |
0.76140 | |
70.04190 |
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n20/D 1.437
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2.41 (vs air)
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水白色液体,辛辣并令人窒息的气味
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48 °F
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104 °C(lit.)
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−76 °C(lit.)
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0.853 g/mL at 20 °C(lit.)
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150 g/L (20 ºC)
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0.14mmHg at 25°C
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Stable under normal temperatures and pressures.
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2-8ºC
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GP9625000
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3
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6.1
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S26-S28-S36/37/39-S45-S61-S28A
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I
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UN 1143 6.1/PG 1
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F; T+; N
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R11; R24/25; R26; R37/38; R41; R48/22; R50; R68
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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>由乙醛在碱或阴离子交换树脂催化作用下液相缩合生成丁醇醛，丁醇醛再在稀酸中加热缩合脱水制得。每吨巴豆醛消耗乙醛1405kg；氢氧化钠4.7kg；醛酸4kg。</p> | |
<p>用于制正丁醇、正丁醛、硫化促进剂。</p> |
