Dichloroacetylene (DCA) is an oily pyrophoric liquid chemical compound with the chemical formula C2Cl2. Its odor is sweet and \"disagreeable\". The compound is volatile at standard temperature and pressure and explodes on contact with air. It is a toxic compound. It displays nephrotoxic effects to rats, but not to humans. It can be made from the compound trichloroethylene. Dichloroacetylene is not soluble in water.

CAS：7572-29-4
中文别名：
英文别名：Dichloroethyne;chloroacetylene;Acetylene,dichloro;Ethyne,dichloro;1,2-dichloro-ethyne;dichloro-acetylene;dichloracetylene;Ethyne, dichloro-;
分子式：C2Cl2
分子量：94.9274
精确质量：93.9377
Psa：0.0
Logp：1.3824

MDL号：MFCD00028172

密度：1.403g/cm3
沸点：74.1ºC at 760 mmHg
熔点：-1.8ºC
闪点：7.3ºC
折射率：1.474

危险类别码：R2; R40; R48/20
危险品运输编码：UN 2845
危险类别：4.2
危险品标志：E; Xn