Trimethylindium (abbr: TMI or TMIn), In(CH3)3, (CAS #: 3385-78-2) is the preferred organometallic source of indium for metalorganic vapour phase epitaxy (MOVPE) of indium-containing compound semiconductors, such as InP, InAs, InN, InSb, GaInAs, InGaN, AlGaInP, AlInP, AlInGaNP, etc. TMI is a white, crystalline and sublimable solid, with melting point 88°C. TMI is pyrophoric (ignites spontaneously upon contact with air), and its decomposition is often found to be uncontrollable as the temperature of its surrounding exceeds its melting point (i.e. > 88°C) and reaches 101°C and above. TMI is also reported to exhibit autocatalytic behavior during its thermal decomposition. TMI therefore needs to be handled with the utmost care and caution, e.g. stored in preferably cool, dry place at 0-25°C, and operating temperatures under 50°C in order to avoid deterioration. TMI also reacts extremely violently with oxidizers and polyhalogenated compounds (such as CCl4 or CBrCl3), with which TMI is therefore incompatible. Hence, mixtures of TMI with oxidizers and/or polyhalogenated compounds must be avoided as they are potentially dangerous and explosive.

CAS：3385-78-2
中文别名：
英文别名：Trimethylindium;Trimethylindane;Indium,trimethyl;Indium, trimethyl-;
分子式：C3H9In
分子量：159.922
精确质量：159.974
Psa：0.0
Logp：1.7514

EINECS号：222-200-9

外观与性状：白色晶体
密度：1.568 g/cm3
熔点：88ºC
闪点：-18ºC

安全说明：7-16-43-45
危险类别码：R14; R17; R34
危险品运输编码：UN 2845
海关编码：2931900090
危险类别：4.2