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环丁砜

环丁砜
环丁砜分子的球棒模型
IUPAC名
Tetrahydrothiophene 1,1-dioxide
别名 sulfolane
tetramethylene sulfone
识别
CAS号 126-33-0  ☒N
PubChem 31347
ChemSpider 29080
SMILES
 
  • O=S1(CCCC1)=O
InChI
 
  • 1/C4H8O2S/c5-7(6)3-1-2-4-7/h1-4H2
InChIKey HXJUTPCZVOIRIF-UHFFFAOYAA
ChEBI 74794
性质
化学式 C4H8O2S
摩尔质量 120.17 g·mol⁻¹
外观 无色澄清液体
密度 1.261 g/cm3(液体)
熔点 27.5 °C
沸点 285 °C
溶解性 混溶
黏度 0.01007 Pa·s,25°C
结构
偶极矩 4.35 D
危险性
警示术语 R:R22
安全术语 S:S23-S24-S25
NFPA 704
1
2
0
 
闪点 165 °C
自燃温度 528 °C
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

环丁砜又名四氢噻吩-1,1-二氧化物,为无色透明液体,是一种优良的非质子极性溶剂,可与丙酮甲苯等互溶。也是石油化工芳烃抽提工艺中的理想试剂[1][2]

参考文献

  1. ^ 侯祥麟,中国炼油技术,中国石化出版社,1991年,184-194
  2. ^ 袁忠勋,几种芳烃抽提工艺技术的分析对比,石油炼制与化工,1994,25(6),35-41
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