Ethyl dimethylamine

from Wikipedia, the free encyclopedia
Structural formula
Structural formula of ethyldimethylamine
General
Surname Ethyl dimethylamine
other names
  • N , N -dimethylethylamine
  • Dimethylethylamine
  • DMEA
Molecular formula C 4 H 11 N
Brief description

colorless to yellowish liquid with an ammonia-like odor

External identifiers / databases
CAS number 598-56-1
EC number 209-940-8
ECHA InfoCard 100.009.038
PubChem 11723
Wikidata Q16954761
properties
Molar mass 73.14 g mol −1
Physical state

liquid

density

0.675 g cm −3

Melting point

-140 ° C

boiling point

36.5 ° C

Vapor pressure

527 hPa (20 ° C)

solubility

miscible with water

Refractive index

1.372 (20 ° C)

safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
02 - Highly / extremely flammable 06 - Toxic or very toxic 05 - Corrosive

danger

H and P phrases H: 225-302-331-314-335
P: 210-235-260-280-303 + 361 + 353-305 + 351 + 338-310-403 + 233
Toxicological data

740 mg kg −1 ( LD 50ratoral )

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Ethyldimethylamine is a chemical compound from the group of aliphatic amines .

Extraction and presentation

Ethyldimethylamine can be obtained by reducing N , N -dimethylacetamide with lithium aluminum hydride .

properties

Ethyldimethylamine is a highly flammable, volatile, colorless to yellowish liquid with an ammonia- like odor, which is miscible with water. Your aqueous solution reacts strongly alkaline.

use

Ethyldimethylamine is used as an adhesive, sealant chemical and process controller . It acts as an intermediate for quaternary ammonium compounds and is also used as a stabilizer for chlorinated hydrocarbons and vinyl derivatives , as well as in the polymerisation of polyamides . It is also used in the production of polypeptide nanogels with self-amplified endocytoses . It also serves as a crosslinker in paper finishing.

safety instructions

The vapors of ethyldimethylamine can form an explosive mixture with air ( flash point –28 ° C).

Individual evidence

  1. a b c d e f g h i j Entry on ethyldimethylamine in the GESTIS substance database of the IFA , accessed on January 9, 2019(JavaScript required) .
  2. Data sheet N, N-Dimethylethylamine, ≥99% from Sigma-Aldrich , accessed on April 5, 2017 ( PDF ).
  3. Entry on ethyldimethylamine in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on April 5, 2017. Manufacturers or distributors can expand the harmonized classification and labeling .
  4. a b Werner Baumann, Herberg-Liedtke: Paper chemicals data and facts on environmental protection . Springer-Verlag, 2013, ISBN 978-3-642-58040-6 , pp. 648 ( limited preview in Google Book search).
  5. Joachim Buddrus, Bernd Schmidt: Fundamentals of organic chemistry . Walter de Gruyter GmbH & Co KG, 2015, ISBN 978-3-11-033105-9 , p. 577 ( limited preview in Google Book search).
  6. Data sheet N, N-Dimethylethylamine, 99% from AlfaAesar, accessed on April 5, 2017 ( PDF )(JavaScript required) .