中文名称二溴二氟烷中文同义词二溴二氟烷;二氟二溴甲烷;二溴二氟甲烷;氟二溴甲烷英文名称DIBROMODIFLUOROMETHANE英文同义词Carbonbromidefluoride(CBr2F2);dibromodifluoromethaneCBr2F2;Carbondibromidedifluoride;dfbm;dibromodifluoro-methan;F12B2;Freon12-B2;freon12b2CAS号75-61-6分子式CBr2F2分子量209.82EINECS号200-885-5相关类别氟精细;氟精细品;refrigerants;Alkyl;HalogenatedHydrocarbons;OrganicBuildingBlocksMol文件75-61-6.mol结构式二溴二氟烷性质熔点-141°C沸点24.5°C密度2.297g/mLat25°C(lit.)蒸气密度7.24(vsair)蒸气压12.79psi(20°C)折射率1.398-1.402闪点None储存条件2-8°C溶解Chemicalbook度可溶于丙酮、酒精、苯和乙醚(Weast,1986)形态无色液体或气体水溶解性InsolubleBRN1732515Henry’sLawConstant1.72x10-2atm?m3/molat26°C(staticheadspace-GC,Sainietal.,2002)暴露限值NIOSHREL:TWA100ppm(860mg/m3),IDLH2,000ppm;OSHAPEL:TWA100ppm.CAS数据库75-61-6(CASDataBaseReference)NIST化学物质信息Methane,dibromodifluoro-(75-61-6)EPA化学物质信息Dibromodifluoromethane(75-61-6)二溴二氟烷用途与合成方法类别有害气体毒性分级低毒急性毒性吸入-小鼠LC50:140000毫克/立方米/1小时可燃性危险特性不燃烧;火场产生有毒氟化物和溴化物气体;臭氧消耗物质储运特性库房通风低温干燥灭火剂干粉、泡沫、砂土职业标准TWA860毫克/立方米;STEL1000毫克/立方米 |