High Quality Content by WIKIPEDIA articles! Trimethylindium (abbr: TMI or TMIn), In(CH3)3, (CAS #: 3385-78-2) is the preferred metalorganic 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 known to be pyrophoric, i.e. it ignites sponteneously 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. Hence TMI needs to be handled with utmost care and caution, e.g. stored in preferably cool, dry place at 0-25°C, and operating temperatures not to exceed 50 °C to avoid deterioration. TMI is also known to react extremely violently with oxidizers and polyhalogenated compounds (such as CCl4 or CBrCl3) with which TMI is known to be incompatible. Hence the situations involving admixtures of TMI with oxidizers and polyhalogenated compounds must be avoided as potentially dangerous and explosive.