Hexamethylenediamine (a.k.a. HMDA) is a colorless solid at room temperature, which presents a typical amine odor. It is soluble in both water and alcohol, but poorly soluble in aliphatic hydrocarbons. Although the first record of HMDA synthesis was in 1900, it only gained importance in the late 1930s, after the synthesis of nylon 66, which is based in the combination of adipic acid with HMDA. The success of nylon allowed the expansion of HMDA production.
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