Dimethylamine

Dimethylamine
Names
	Preferred IUPAC name N-Methylmethanamine
	Other names (Dimethyl)amine
Identifiers
CAS Number	124-40-3 ;
3D model (JSmol)	Interactive image;
3DMet	B00125;
Beilstein Reference	605257
ChEBI	CHEBI:17170 ;
ChEMBL	ChEMBL120433 ;
ChemSpider	654 ;
ECHA InfoCard	100.004.272
EC Number	204-697-4;
Gmelin Reference	849
KEGG	C00543 ;
MeSH	dimethylamine
PubChem CID	674;
RTECS number	IP8750000;
UNII	ARQ8157E0Q ;
UN number	1032
CompTox Dashboard (EPA)	DTXSID5024057 ;
	InChI InChI=1S/C2H7N/c1-3-2/h3H,1-2H3 Key: ROSDSFDQCJNGOL-UHFFFAOYSA-N ;
	SMILES CNC;
Properties
Chemical formula	(CH3)2NH
Molar mass	45.085 g·mol−1
Appearance	Colorless gas
Odor	Fishy, ammoniacal
Density	649.6 kg m−3 (at 25 °C)
Melting point	−93.00 °C; −135.40 °F; 180.15 K
Boiling point	7 to 9 °C; 44 to 48 °F; 280 to 282 K
Solubility in water	1.540 kg L−1
log P	−0.362
Vapor pressure	170.3 kPa (at 20 °C)
Henry's law; constant (kH)	310 μmol Pa−1 kg−1
Basicity (pKb)	3.29
Thermochemistry
Std enthalpy of; formation (ΔfH⦵298)	−21 to −17 kJ mol−1
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H220, H302, H315, H318, H332, H335
Precautionary statements	P210, P261, P280, P305+P351+P338
NFPA 704 (fire diamond)	2 4 0
Flash point	−6 °C (21 °F; 267 K) (liquid)
Autoignition; temperature	401 °C (754 °F; 674 K)
Explosive limits	2.8–14.4%
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	698 mg/kg (rat, oral); 316 mg/kg (mouse, oral); 240 mg/kg (rabbit, oral); 240 mg/kg (guinea pig, oral)
LC50 (median concentration)	4700 ppm (rat, 4 hr); 4540 ppm (rat, 6 hr); 7650 ppm (mouse, 2 hr)
	NIOSH (US health exposure limits):
PEL (Permissible)	TWA 10 ppm (18 mg/m3)
REL (Recommended)	TWA 10 ppm (18 mg/m3)
IDLH (Immediate danger)	500 ppm
Related compounds
Related amines	Trimethylamine; Diethylamine; Triethylamine; Diisopropylamine; Dimethylaminopropylamine; Triisopropylamine;
Related compounds	Unsymmetrical dimethylhydrazine;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Dimethylamine is an organic compound with the formula (CH₃)₂NH. This secondary amine is a colorless, flammable gas with an ammonia-like odor. Dimethylamine is commonly encountered commercially as a solution in water at concentrations up to around 40%. An estimated 270,000 tons were produced in 2005.^[5]

^ "Dimethylamine". NIST Chemistry WebBook. USA: National Institute of Standards and Technology. Retrieved 15 February 2022.
^ "Dimethylamine 38931 - ≥99.0%". Aldrich. Sigma-Aldrich Co. Retrieved 15 February 2022.
^ ^a ^b ^c NIOSH Pocket Guide to Chemical Hazards. "#0219". National Institute for Occupational Safety and Health (NIOSH).
^ ^a ^b "Dimethylamine". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
^ Van Gysel, August B.; Musin, Willy (2000). "Methylamines". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a16_535. ISBN 978-3527306732.

[1] "Dimethylamine". NIST Chemistry WebBook. USA: National Institute of Standards and Technology. Retrieved 15 February 2022.

[2] "Dimethylamine 38931 - ≥99.0%". Aldrich. Sigma-Aldrich Co. Retrieved 15 February 2022.

[PGCH-3] NIOSH Pocket Guide to Chemical Hazards. "#0219". National Institute for Occupational Safety and Health (NIOSH).

[IDLH-4] "Dimethylamine". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).

[Ullmann-5] Van Gysel, August B.; Musin, Willy (2000). "Methylamines". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a16_535. ISBN 978-3527306732.

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