Ethylaluminium sesquichloride, also called EASC, is an industrially important organoaluminium compound used primarily as a precursor to triethylaluminium and as a catalyst component in Ziegler-Natta type systems for olefin and diene polymerizations. Other applications include use in alkylation reactions and as a catalyst component in linear oligomerization and cyclization of unsaturated hydrocarbons.< EASC is a colourless liquid, spontaneously combustible in air and reacts violently when in contact with water and many other compounds.

CAS：12075-68-2
中文别名：乙基倍半铝氯化物;三氯三乙基络铝;
英文别名：Ethylaluminum sesquichloride;triethyl aluminum sesquichloride;Triethyltrichlorodialuminum;Trichlorotriethyldialuminum;trichlorotriethyldi-aluminu;triethyldialuminum trichloride;sesquiethylaluminumchloride;EASC;ETHYLALUMINIUM SESQUICHLORIDE;Aluminiumethylsesquichlorid;
分子式：C6H15Al2Cl3
分子量：247.505
精确质量：245.987
Psa：0.0
Logp：4.9902

MDL号：MFCD00044852
EINECS号：235-137-7
BRN号：4027369
RTECS号：BD1950000
PubChem号：24855562

外观与性状：透明无色溶液
密度：0.904
沸点：204ºC
熔点：-50ºC
闪点：-18ºC
储存条件：water-free area

安全说明：S16; S26; S36/37/39; S45; S27
危险类别码：R15; R17; R23/24/25; R34
海关编码：2903199000
危险品运输编码：UN 3394
危险类别：4.2
危险品标志：F; C
危险性描述：H225; H250; H260; H314
危险标志：GHS02, GHS05
信号词：Danger
危险性防范说明：P210; P222; P223; P231 + P232; P370 + P378; P422
补充危害声明：与水剧烈反应。

用途
聚烯烃工业的催化剂，制造有机化合物的中间体。