Hexamethylenediamine


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hexamethylenediamine

[‚hek·sə′meth·ə‚lēn′dī·ə‚mēn]
(organic chemistry)
H2N(CH2)6NH2 Colorless solid boiling at 205°C; slightly soluble in water, alcohol, and ether; used to make nylon and other high polymers.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

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

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Nylon synthesized by poly-condensation of hexamethylenediamine and adipic acid yields Nylon 66.
Yang and coworkers [45] introduced a dip coating method to develop a multifunctional coating onto mirror polished 316L SS by copolymerization of dopamine and hexamethylenediamine (PDAM/HD).
[35] fabricated a robust superhydrophobic surface by the combination of epoxy resin, hexamethylenediamine, and silica nanoparticles.
Nitric acid, N,N'-dicyclohexylcarbodiimide, hexamethylenediamine (HMDA), and glutaraldehyde (GA) were employed for the process of enzyme immobilization.
Regarding curing agents, the most used material is a hexamethylenediamine carbamate (Diak #1).
Immobilization of tyrosinase is used to convert L-tyrosine to L-DOPA by entrapment into either polymer, natural polymer, or modified polystyrene or adsorption on nylon zeolite [161], glass beads, fuller's earth, and chitin activated with hexamethylenediamine [162].
L-lactide and hexamethylenediamine (HMDI) were purchased from Acros organics (Morris Plains, NJ, USA).
INEOS Nitriles manufacturing site at Seal Sands is composed of two main operations manufacturing the chemical intermediates Acrylonitrile (AN) and Hexamethylenediamine (HMD).
1,4-butanediamine, hexamethylenediamine, 1,8-octanediamine
ADN is used to produce hexamethylenediamine at BASF's Seal Sands plant.