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Hexamethylenediamine

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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.
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
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Literature (12) sheds some light on the changes in molecular weight as a function of concentration ratio (of hexamethylenediamine to adipoyl chloride), the type of scavenger, i.
In situ polymerization of polyamide 66 nanocomposites utilizing ... by Kalkan, Zehra S.; Goettler, Lloyd A. / Polymer Engineering and Science
137) Advancure hexamethylenediamine curative in guanidine-ffee cure systems for Vamac.
Pittsburgh hosts Rubber Division by Rubber World
CHEMICAL giant BASF, which sold its Seal Sands site to Ineos earlier this year, transferring all 240 staff involved in the production of acrylonitrile, adipodinitrile and hexamethylenediamine, said earnings in its European chemicals division had fallen as a result of weaker margins for cracker products.
In brief: Profits weaken by Evening Gazette (Middlesbrough, England)
 
 
 
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