Everything about Dimethylamine totally explained
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FlashPt=Flammable gas|
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ExploLimits=2.8–14.4%|
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Dimethylamine or
N-methylmethanamine or
DMA is an
organic compound and an
amine. It is a colorless,
liquefied and flammable gas with an
ammonia and fish-like odor. Dimethylamine is generally used as a solution in water at concentrations up to around 40%.
Chemistry
Dimethylamine is a secondary
amine. The
molecule consists of a
nitrogen atom with two
methyl substituents and one
proton. Dimethylamine is a
base and the
pKa of the
ammonium salt CH
3-NH
2+-CH
3 is 10.73, a value above
methylamine (10.64) and
trimethylamine (9.79).
Dimethylamine reacts with acids to form salts.
Dimethylamine hydrochloride is an odorless white solid with a melting point of 171.5 °C. Dimethylamine is produced by
catalytic reaction of
methanol and
ammonia at elevated temperatures and high pressure.
Biochemistry
The
German cockroach utilizes dimethylamine as a
pheromone for communication.
DMA undergoes
nitrosation under weak acid conditions to give
dimethlynitrosamine. This animal
carcinogen has been detected and quantified in human urine samples and it may also arise from nitrosation of DMA by nitrogen oxides present in acid rain in highly industrilized countries (Zhang et al. 1998).
Uses
Dimethylamine is used as dehairing agent in
tanning, in
dyes, in
rubber accelerators, in
soaps and cleaning compounds and as an agricultural
fungicide. In industry dimethylamine is converted to
dimethylformamide and the
surfactant lauryl dimethylamine oxide. It is raw material in the production of many
pharmaceuticals such as the
diphenhydramine and also that of the
chemical weapon tabun.
Further Information
Get more info on 'Dimethylamine'.
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