Hexamethylenediamine (redirected from Hexanediamine)

hexamethylenediamine [‚hek·sə′meth·ə‚lēn′dī·ə‚mēn]

(organic chemistry)

H₂N(CH₂)₆NH₂Colorless solid boiling at 205°C; slightly soluble in water, alcohol, and ether; used to make nylon and other high polymers.

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Hexamethylenediamine 

the organic compound NH₂(CH₂)₆NH₂; colorless crystals. Melting point, 42° C; boiling point, 204°-205° C; readily soluble in water, alcohol, ether, and other organic solvents; distilled by steam.

With prolonged exposure, hexamethylenediamine vapors can cause disturbances of the central and autonomic nervous systems and other disorders in man. Hexamethylenediamine is a very important intermediate in the production of polyamide fibers (nylon). Worldwide production of the compound approaches several hundred thousand tons per year. A widespread industrial method for hexamethylenediamine production consists of adipodinitrile reduction on copper-cobalt catalysts (125° C, 60-62.5 meganewtons per sq m, 600-625 kilograms-force per sq cm), cobalt on silica gel, or other catalysts:

N≡C−(CH₂)₄−C≡N + 4H₂→NH₂(CH₂)₆NH₂