Ethylenediamine (EDA), with the chemical formula C2H8N2, is a typical aliphatic diamine and is a colorless or pale yellow oily or watery transparent liquid that produces fumes in the air, with an ammonia-like odor and hygroscopic properties. Its molecular weight is 60.10, melting point is 8.5°C, and autoignition point is 385°C. It is classified as a basic substance, highly soluble in water and ethanol, slightly soluble in ether, and insoluble in benzene unless absolutely dry. It can form azeotropic mixtures with water, n-butanol, and toluene. It is flammable when encountering heat, open flames, or oxidizers, posing a moderate risk during combustion. It can be sterilized by high pressure or filtration.
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