硫酰氟
硫酰氟是一种无机化合物,化学式 SO2F2。它的化学性质比起硫酰氯来说,更接近六氟化硫。它是一种神经毒素,也是一种温室气体。尽管如此,它一直用来制作杀虫剂。
| 硫酰氟 | |||
|---|---|---|---|
| |||
| IUPAC名 Sulfuryl fluoride | |||
| 别名 | Sulfonyl fluoride; Sulfur dioxide difluoride; Sulphuryl fluoride; Sulfuryl difluoride; Vikane | ||
| 识别 | |||
| CAS号 | 2699-79-8 | ||
| PubChem | 17607 | ||
| ChemSpider | 16647 | ||
| SMILES |
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| InChI |
| ||
| InChIKey | OBTWBSRJZRCYQV-UHFFFAOYAJ | ||
| ChEBI | 39287 | ||
| 性质 | |||
| 化学式 | SO2F2 | ||
| 102.06 g/mol g·mol⁻¹ | |||
| 外观 | 无色气体 | ||
| 氣味 | 无味[1] | ||
| 密度 | 4.172 g/L (气体) 1.632 g/mL (0 °C加压得到的液体) | ||
| 熔点 | -124.7 °C(148 K) | ||
| 沸点 | -55.4 °C(218 K) | ||
| 溶解性(水) | 0.2% (0°C)[1] | ||
| 溶解性(其他溶剂) | SO2 | ||
| 蒸氣壓 | 15.8 atm (21°C)[1] | ||
| 结构 | |||
| 配位几何 | 四面体 | ||
| 危险性 | |||
| 主要危害 | 有毒 | ||
| NFPA 704 |
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3
1
| ||
| PEL | TWA 5 ppm (20 mg/m3)[1] | ||
| 致死量或浓度: | |||
LC50(中位浓度) |
991 ppm (大鼠, 4 h) [2] | ||
LCLo(最低) |
1200 ppm (mouse, 1 hr) 5000 ppm (兔, 1 h)[2] | ||
| 相关物质 | |||
| 其他阴离子 | SO2Cl2, SO2ClF | ||
| 其他阳离子 | SeO2F2 | ||
| 相关化学品 | SF6, SO3 | ||
| 若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。 | |||
参考资料
- NIOSH Pocket Guide to Chemical Hazards. . NIOSH.
- . Immediately Dangerous to Life and Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
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