CAS 74-93-1

CAS 74-93-1

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74-93-1@74-93-1·Feb 1, 2021

CAS号: 74-93-1 英文名称: METHYL MERCAPTAN 英文同义词: CH3SH;C00409;4Q 1998;FEMA 2716;Methvtiolo;Methanthiol;METHANETHIOL;MERCAPTAN C1;Methaanthiol;THIOMETHANOL 中文名称: 甲硫醇 中文同义词: 甲硫醇;巯基甲烷;硫氢甲烷;甲烷硫醇;硫代甲醇;硫基甲烷;C1 硫醇;甲硫醇10%;甲硫醇(味道大);甲硫醇,硫氢甲烷 分子式: CH4S 分子量: 48.11 熔点 : −123 °C(lit.) 沸点 : 6 °C(lit.) 密度 : 0.8665 蒸气密度: 1.66 (vs air) 蒸气压: 1536 mm Hg ( 20 °C) 折射率 : 1.4020 (estimate) FEMA : 2716 | METHYL MERCAPTAN 闪点 : 溶解度 : Soluble in alcohol, ether (Weast, 1986), and petroleum naphtha (Hawley, 1981) 酸度系数(pKa): 10.3(at 25℃) 形态: liquid 爆炸极限值(explosive limit): 21.8% 嗅觉阈值(Odor Threshold): 0.00007ppm 水溶解性 : 23.30 g/L at 20 °C (quoted, Windholz et al., 1983) 0.330 mol/L at 25 °C (Hine and Weimar, 1965) JECFA Number: 508 Merck : 13,5983 BRN : 1696840 Henry's Law Constant: 3.03 (Hine and Weimar, 1965) 暴露限值: TLV-TWA 0.5 ppm (~1.0 mg/m3 ) (ACGIH and MSHA); ceiling 10 ppm (OSHA); IDLH 400 ppm (NIOSH); the revised IDLH is 150 ppm in analogy to H2S. 稳定性: Stable. Highly flammable - note low flash point. Reacts vigorously or explosively with a wide variety of materials - consult a full MSDS data sheet before using. Incompatible with strong oxidizing agents, alkali and alkaline earth metals, epoxides, hydrazines, ketones, lead, mercury (II) oxide, azo- and diazo- compounds, copp CAS 数据库: 74-93-1(CAS DataBase Reference) EPA化学物质信息: Methyl mercaptan (74-93-1) 危险品标志 : F+,T,N 危险类别码 : 12-23-50/53 安全说明 : 16-25-60-61 危险品运输编号 : UN 2037 2.3 WGK Germany : 3 RTECS号: PB4375000 F : 13-27 HazardClass : 2.3 毒性: LC50 (inhalation) for mice 6,530 μg/m3/2-h, rats 675 ppm (quoted, RTECS, 1985).