CAS号: 93-76-5 英文名称: 2,4,5-Trichlorophenoxyacetic acid 英文同义词: VEON;Forron;Fortex;Reddon;Reddox;Tippon;2,4,5-T;WEEDONE;Phortox;Trioxon 中文名称: 2,4,5-三氯苯氧乙酸 中文同义词: 5-涕;2，4，5-涕;2,4,5-滴;2,4,5-涕酸;2,4,5-T 溶液;2,4,5-涕酸标准溶液;2，4，5-三氯苯氧乙酸;2,4,5-三氯苯氧基乙酸;2,4,5-三氯苯氧基醋酸;甲醇中2,4,5-三氯苯氧乙酸 分子式: C8H5Cl3O3 分子量: 255.48 熔点 : 154-158 °C(lit.) 沸点 : 361.82°C (rough estimate) 密度 : 1.6048 (rough estimate) 蒸气压: 6.46 at 25 °C (Lewis, 1989) 折射率 : 1.4700 (estimate) 闪点 : 2 °C 储存条件 : 0-6°C 溶解度 : Soluble in ethanol (548.2 mg/L), ether (243.2 mg/L), heptane (400 mg/L), xylenes (6.8 g/L), methanol (496 g/L), toluene (7.32 g/L) (quoted, Keith and Walters, 1992). 酸度系数(pKa): 2.80 and 2.83 at 25 °C (ionic strength <0.01 M, Jafvert et al., 1990) 2.88 (Nelson and Faust, 1969) 形态: crystalline 颜色: off-white to yellow 水溶解性 : 238mg/L(20 ºC) Merck : 13,9111 Henry's Law Constant: 4.87 at 25 °C (approximate - calculated from water solubility and vapor pressure) 暴露限值: NIOSH REL: TWA 10 mg/m3, IDLH 250 mg/m3; OSHA PEL: TWA 10 mg/m3; ACGIH TLV: TWA 10 mg/m3. 稳定性: Stable. Incompatible with strong bases, strong oxidizing agents, alkali metals, amines, alcohols. Reacts with many common metals. CAS 数据库: 93-76-5(CAS DataBase Reference) NIST化学物质信息: Acetic acid, 2,4,5-trichlorophenoxy-(93-76-5) EPA化学物质信息: 2,4,5-T (93-76-5) 危险品标志 : Xn,N,F 危险类别码 : 22-36/37/38-50/53-36-20/21/22-11 安全说明 : 24-60-61-36/37-26-16 危险品运输编号 : UN 2811 6.1/PG 3 WGK Germany : 3 RTECS号: AJ8400000 HazardClass : 6.1(b) PackingGroup : III 海关编码 : 29189100 毒害物质数据: 93-76-5(Hazardous Substances Data) 毒性: LC50 (96-hour) for rainbow trout 350 mg/L and carp 355 mg/L (Hartley and Kidd, 1987); acute oral LD50 for rats 500 mg/kg (Hartley and Kidd, 1987), 300 mg/kg (RTECS, 1985).