N,N-Dimethylethylamine

Agent Name
N,N-Dimethylethylamine
CAS Number
598-56-1
Formula
C4-H11-N
Major Category
Nitrogen Compounds
N,N-Dimethylethylamine formula graphical representation
Synonyms
Dimethylethylamine; Ethanamine, N,N-dimethyl-; Ethylamine, N,N-dimethyl-; Methanamine, N-ethyl-N-methyl-; N-Ethyldimethylamine; Ethanamine, N,N-dimethyl-; Ethyldimethylamine; [ChemIDplus] N,N-Dimethyl ethyl amine; [Guide to Occupational Exposure Values, 2002] DMEA; Ethyldimethylamin; N,N-Dimethylethylamin; N,N-Dimethyl-ethylamine; [IUCLID] UN2733
Category
Amines, Aliphatic
Description
Clear colorless liquid with a strong odor of ammonia or fish; [CAMEO]
Sources/Uses
Used as a curing agent for cold-box sand molding in foundries, in the polymerization of polyamides, as intermediate for quaternary ammonium compounds, and as stabilizer for chlorinated hydrocarbons and vinyl derivatives; [HSDB] Used to make other chemicals; [CAMEO]
Comments
In an industrial hygiene survey of foundry workers, some high concentrations of dimethylethylamine were found associated with cold-box sand molding. [Appl Occup Environ Hyg 2001 Jan;16(1):66-77] Volunteers exposed to 40-50 mg/m3 for 8 hours experienced mucous membrane irritation and mild corneal edema. [Br J Ind Med 1991 Jan;48(1):26-9] Corrosive to skin; [Quick CPC] Occupational exposure to vapor reportedly causes eye irritation, visual disturbances (haze, blurred vision, lachrymation, and halo perception), and mild edema of corneal epithelium; Systemic effects reported (following suspected large releases) in foundry employees include dizziness, tightness and pain in the chest, abdominal cramps, increased heart rate, headache, and nausea; Emergency treatment: "Irritants"; [HSDB] Not sensitizing in guinea pig maximization test; Classified in the EU as: Causes burns; Harmful by inhalation and ingestion; Extremely flammable; [IUCLID] Causes burns; Harmful if swallowed or inhaled--can cause chemical pneumonitis; [Alfa Aesar MSDS]
Biomedical References

Exposure Assessment

MAK
2 ppm
Vapor Pressure
352 mm Hg
Lethal Concentration
LC50 (rat) = 2,300-15,400 mg/m3/1hr
Explanatory Notes
Flash point = 10 deg F; The Guide in the Emergency Response Guidebook is for "Amines, flammable, corrosive, n.o.s." VP from HSDB;

Adverse Effects

Lachrymator
Yes
Toxic Pneumonitis
Yes
Dermatotoxin
Skin burns

Diseases, Processes, and Activities Linked to This Agent

Processes

Industrial Processes with risk of exposure: