甲胺

概览

The nitrogen lone pair accepts a proton from an acid. Protonation changes the charge but leaves the carbon–nitrogen bond intact. Primary refers to the single carbon group attached to nitrogen, not to the number of carbon atoms in the entire molecule.

Identifiers

化学式

CH5N

官能团

胺

摩尔质量

31.057 g/mol

Also known as

methanamine, Aminomethane, Monomethylamine, Carbinamine, Mercurialin, N-Methylamine

性质

熔点

-93.42 °C

沸点

BP: -6.3 °C at 760 mm Hg

密度

0.6624 g/cu cm at 25 °C

水中溶解度

Very soluble in water

Related compounds

• 胺

参考文献

1. PubChem Compound Summary: Methylamine (CID 6329)National Center for Biotechnology Information · PubChem

   Identity, molecular formula, molecular weight and aliases retrieved via PUG REST on 2026-09-08.

2. OpenStax Organic Chemistry: Basicity of aminesJohn McMurry · OpenStax · 2023

   Supports the qualitative structural interpretation of the recorded molecular structure; no new physical measurement or verified preparative yield is claimed.

3. OpenStax Organic Chemistry: Structure and properties of aminesJohn McMurry · OpenStax · 2023

   Supports the qualitative structure and reactivity context; identity and numerical measurements retain their original references.

4. Hazardous Substances Data Bank (HSDB): Methylamine — melting pointHazardous Substances Data Bank (HSDB)

   Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6329#section=Melting-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Haynes, W.M. (ed.). CRC Handbook of Chemistry and Physics. 95th Edition. CRC Press LLC, Boca Raton: FL 2014-2015, p. 3-354

5. Hazardous Substances Data Bank (HSDB): Methylamine — boiling pointHazardous Substances Data Bank (HSDB)

   Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6329#section=Boiling-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Cambridge, UK: Royal Society of Chemistry, 2013., p. 1116

6. Hazardous Substances Data Bank (HSDB): Methylamine — densityHazardous Substances Data Bank (HSDB)

   Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6329#section=Density. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Gerhartz, W. (exec ed.). Ullmann's Encyclopedia of Industrial Chemistry. 5th ed.Vol A1: Deerfield Beach, FL: VCH Publishers, 1985 to Present., p. VA16: 536 (1990)

7. Hazardous Substances Data Bank (HSDB): Methylamine — solubilityHazardous Substances Data Bank (HSDB)

   Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6329#section=Solubility. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Haynes, W.M. (ed.). CRC Handbook of Chemistry and Physics. 95th Edition. CRC Press LLC, Boca Raton: FL 2014-2015, p. 3-354