−6.6 to −6.0 °C; 20.0 to 21.1 °F; 266.5 to 267.1 K
Solubility in water
1008 g/L (at 20 °C)
log P
−0.472
Vapor pressure
186.10 kPa (at 20 °C)
Henry's law constant (kH)
1.4 mmol/(Pa·kg)
Acidity (pKa)
10.66
Conjugate acid
[CH3NH3]+ (Methylammonium)
Magnetic susceptibility (χ)
-27.0·10−6 cm3/mol
Viscosity
230 μPa·s (at 0 °C)
Dipole moment
1.31 D
Thermochemistry
Std enthalpy of formation (ΔfH⦵298)
−23.5 kJ/mol
Hazards
GHS labelling:
Pictograms
Signal word
Danger
Hazard statements
H220, H315, H318, H332, H335
Precautionary statements
P210, P261, P280, P305+P351+P338, P410+P403
NFPA 704 (fire diamond)
3
4
0
Flash point
−10 °C; 14 °F; 263 K (liquid, gas is extremely flammable)[3]
Autoignition temperature
430 °C (806 °F; 703 K)
Explosive limits
4.9–20.7%
Lethal dose or concentration (LD, LC):
LD50 (median dose)
100 mg/kg (oral, rat)
LC50 (median concentration)
1860 ppm (mouse, 2 hr)[3]
NIOSH (US health exposure limits):
PEL (Permissible)
TWA 10 ppm (12 mg/m3)[3]
REL (Recommended)
TWA 10 ppm (12 mg/m3)[3]
IDLH (Immediate danger)
100 ppm[3]
Safety data sheet (SDS)
emdchemicals.com
Related compounds
Related alkanamines
ethylamine, dimethylamine, trimethylamine
Related compounds
ammonia
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
Chemical compound
Methylamine is an organic compound with a formula of CH3NH2. This colorless gas is a derivative of ammonia, but with one hydrogen atom being replaced by a methyl group. It is the simplest primary amine.
Methylamine is sold as a solution in methanol, ethanol, tetrahydrofuran, or water, or as the anhydrous gas in pressurized metal containers. Industrially, methylamine is transported in its anhydrous form in pressurized railcars and tank trailers. It has a strong odor similar to rotten fish. Methylamine is used as a building block for the synthesis of numerous other commercially available compounds.
^Nomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 670. doi:10.1039/9781849733069-00648. ISBN 978-0-85404-182-4.
^"Methylamine Definition & Meaning". Retrieved 22 April 2022.
^ abcdeNIOSH Pocket Guide to Chemical Hazards. "#0398". National Institute for Occupational Safety and Health (NIOSH).
Methylamine is an organic compound with a formula of CH3NH2. This colorless gas is a derivative of ammonia, but with one hydrogen atom being replaced...
halide with a formula of CH3NH3Cl. It is an ammonium salt composed of methylamine and hydrogen chloride. One potential application for the methylammonium...
salt formed by the neutralization of methylamine with nitric acid. This substance is also known as methylamine nitrate and monomethylamine nitrate, not...
(HCOO–) as the anion. This salt can be formed by the reaction between methylamine (CH3NH2) and formic acid (HCOOH). It has characteristics of both an ammonium...
base and the pKa of the ammonium CH3-NH+ 2-CH3 is 10.73, a value above methylamine (10.64) and trimethylamine (9.79). Dimethylamine reacts with acids to...
the tracking device found affixed to the bottom of one of Madrigal's methylamine barrels. Mike and Walt believe that she planted it and decide to kill...
⇌{\displaystyle \rightleftharpoons } (4-hydroxyphenyl)acetaldehyde + methylamine This enzyme belongs to the family of lyases, specifically the hydro-lyases...
which is also abbreviated MDEA. MDEA is produced by ethoxylation of methylamine using ethylene oxide: CH3NH2 + 2 C2H4O → CH3N(C2H4OH)2 Another route...
the contrasting affinities of copper(II) for ethylenediamine (en) vs. methylamine. In (1) the ethylenediamine forms a chelate complex with the copper ion...
Amine Dehydrogenase (EC 1.4.99.3), also known as methylamine dehydrogenase (MADH), is a tryptophan tryptophylquinone-dependent (TTQ-dependent) enzyme...
site in 1979. The chemical process employed in the Bhopal plant had methylamine reacting with phosgene to form MIC, which was in turn reacted with 1-naphthol...
Chlormethine (INN, BAN), also known as mechlorethamine (USAN, USP), mustine, HN2, and (in post-Soviet states) embikhin (эмбихин), is a nitrogen mustard...
name 4-(methylamino)-1-(pyridin-3-yl)butan-1-one:oxygen oxidoreductase (methylamine releasing). This enzyme catalyses the following chemical reaction...
tracking the methylamine Madrigal supplies, she provides Mike, Walt, and Jesse with information on a train that includes a tanker car of methylamine. They arrange...
is an enzyme that catalyzes the chemical reaction acetyl phosphate + methylamine + thioredoxin disulfide ⇌{\displaystyle \rightleftharpoons } N-methylglycine...
(CH3)3N + 3 H2O This reaction coproduces the other methylamines, dimethylamine (CH3)2NH and methylamine CH3NH2. Trimethylammonium chloride has been prepared...
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