正丁硫醇109-79-5

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英文名称：ButanethiolCAS号：109-79-5分子式：C4H10S分子量：90.19EINECS号：203-705-3MDL No.：MFCD00004905
属性熔点?116 °C(lit.)沸点98 °C(lit.)密度0.842 g/mL at 25 °C(lit.)蒸气密度3.1 (vs air)蒸气压83 mm Hg ( 37.7 °C)折射率n20/D 1.443(lit.)FEMA3478 | 1-BUTANETHIOL闪点55 °F储存条件Store below  30°C.溶解度0.597g/l形态Liquid酸度系数(pKa)11.51 at 25 °C (23.0% aqueous tert-butyl alcohol, Friedman et al., 1965)颜色Colorless比重0.842气味 (Odor)Strong skunk-like.嗅觉阈值(Odor Threshold)0.0000028ppm香型sulfurous爆炸极限值(explosive limit)1.4-11.3%(V)水溶解性0.60 g/100 mL. Slightly soluble敏感性Air SensitiveMerck14,1577JECFA Number511BRN1730908Henry's Law Constant(x 10-3 atm?m3/mol): 7.04 at 20 °C (approximate - calculated from water solubility and vapor pressure)暴露限值NIOSH REL: 15-min ceiling 0.5 ppm (1.8 mg/m3), IDLH 500 ppm; OSHA PEL: TWA 10 ppm (35 mg/m3); ACGIH TLV: TWA 0.5 ppm (adopted).稳定性Stable. Incompatible with oxidizing agents, bases, alkali metals. Highly flammable. May discolour on exposure to air.