Dimethylaniline

• Dimethylaminobenzene
• Dimethyl- phenyl-amine

Colorless to yellowish liquid with an amine-like odor

Liquid

0.96 g · cm -3

2 ° C

194 ° C.

0.67 hPa ( 20 ° C)

• Poorly in water ( 1.2 g · l-1 at 20 ° C)
• Soluble in ethanol, diethyl ether, chloroform, acetone and benzene

1.5582 (20 ° C)

Risk

5 ml · m-3

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N, N- dimethylaniline is usually a yellowish oily liquid with a characteristic odor and turns in the air quickly dark. The compound is basic and forms salts with acids.

Production

N, N- dimethylaniline can be prepared by methylation of aniline with methanol under acid catalysis:

Instead of two equivalent of using methanol, and one equivalent of dimethyl ether can be used.

Use

N, N- dimethylaniline is used in the chemical industry, primarily as starting materials for the synthesis of dyes (for example, methyl orange ) and synthesis intermediates. DMA is ( often referred to as an accelerator or activator) as a reducing component in conjunction with organic peroxides used for the polymerization / curing of unsaturated polyester ( UP) resins. A typical application of such products are, for example, fillers (repair putty ) for car bodies or natural stone (marble).

Toxicity

N, N- dimethylaniline is a toxic compound which is suspected to cause cancer, and can be absorbed through the skin. Vapors of N, N -dimethylaniline, should not be inhaled. The first signs of poisoning by oral ingestion are often dizziness, vomiting and impaired perception.