Methyl diethanolamine

• 2,2 '- methyliminodiethanol
• N-methyl- 2, 2'- iminodiethanol
• N-methyldiethanolamine
• N, N -bis (2-hydroxyethyl ) methylamine
• N, N- diethanol
• MDEA ( ambiguous )

Colorless liquid with an amine-like odor

Liquid

1.04 g · cm -3

-21 ° C.

243 ° C.

1.3 Pa (20 ° C)

Miscible with water

1.4694

Attention

1945 mg · kg -1 ( LD50, rat, oral)

Template: Infobox chemical / molecular formula search available

Methyldiethanolamine (MDEA) is an organic chemical compound consisting of the group of amines and alcohols ( alkanolamines ). Is present as air sensitive colorless liquid and is used as a catalyst in the polyurethane synthesis, and as a chemical intermediate in the preparation of textile auxiliaries, dyes, insecticides, pharmaceuticals, and emulsifiers. In addition, MDEA finds use as absorbent in the acid gas scrubbing, especially MDEA is currently being discussed as a suitable adsorbent for subsequent CO2 capture in power plants. MDEA is ambiguous and the abbreviation is used also for the 3,4- methylenedioxy -N- ethylamphetamin.

Properties

The liquid has a viscosity at 20 ° C of 101 mPa.s. The aqueous solution of MDEA reacts strongly alkaline. On contact with air MDEA reacts with this and therefore must be stored tightly sealed. In the wild, it is readily biodegradable. MDEA subject as precursor of the Chemical Weapons Convention and is listed there accordingly.