挥发性有机化合物(VOCs)
CAS号:109-77-3
品名:丙二腈malononitrile
中文别名:二氰基甲烷;丙二腈/马来腈;氰基乙腈;二氰甲烷;
英文别名:Dicyanomethane;Propanedinitrile;propanedinitrile;Malonitrile;MethyleneCyanide;Malononitrile;MethyleneDicyanide;
分子式:C3H2N2
分子量:66.0614
精确质量:66.0218
Psa:47.58
RTECS号:OO3150000
BRN号:773697
EINECS号:203-703-2
MDL号:MFCD00001883
PubChem号:24896644
外观与性状:固体熔化物
密度:1.049g/mLat 25°C(lit.)
沸点:220°C(lit.)
熔点:30-32°C(lit.)
闪点:234°F
折射率:1.4150
储存条件:库房通风低温干燥,与氧化剂、酸类、食品添加剂分开存放
蒸汽压:0.125mmHg at 25°C
安全说明:S23-S27-S45-S60-S61
危险类别码:R23/24/25; R50/53
WGK Germany:3
海关编码:2926909090
危险品运输编码:UN 2647 6.1/PG 2
危险类别:6.1
包装等级:II
危险品标志:T
简介:Malononitrile,alsopropanedinitrile,isanitrilewiththeformulaCH2(CN)2.Malononitrileisrelativelyacidic,withapKaof11inwater.ThisallowsittobeusedintheKnoevenagelcondensation,forexampleinthepreparationofCSgas.Inrelatedchemistry,malononitrileisasuitablestartingmaterialfortheGewaldreaction,wherethenitrilecondenseswithaketoneoraldehydeinthepresenceofelementalsulfurandabasetoproducea2-aminothiophene.
用途:医药和农药中间体。