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| CAS号 : | 111-24-0 |
精确质量 : | 227.91500 |
| 分子式 : | C5H10Br2 |
logP : | 2.94650 |
| 分子量 : | 229.94100 |
PSA : | 0.00000 |
二溴戊烷 | |
1,5-Dibromopentane | |
111-24-0 | |
C5H10Br2 | |
229.94100 | |
0.00000 | |
2.94650 | |
227.91500 |
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n20/D 1.512(lit.)
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8 (vs air)
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透明无色至黄色-褐色液体
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>230 °F
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110 °C15 mm Hg(lit.)
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−34 °C(lit.)
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insoluble
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1.688 g/mL at 25 °C(lit.)
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0.136mmHg at 25°C
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Stable at room temperature in closed containers under normal storage and handling conditions.
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Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
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SA0320000
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29033036
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3
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S23-S26-S36-S37/39
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Xn
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R22; R36/38
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由四氢吡喃开环溴化而得。在500ml烧瓶中,依次加入250g48%氢溴酸;75g浓硫酸; 21.5g重蒸过的四氢吡喃(86.5-87.5℃馏分)装上回流冷凝器,将棕色混合物加热温和地回流3h。冷至室温后,分出下层的二溴化物,用饱和碳酸钠溶液和水各洗一次。以无水氯化钙干燥。减压蒸馏,收集104-106℃(2.53kPa)馏分即为成品,产量为46-47g,产率为80-82%。 | |
有机合成中间体。 |
