Noun
methylammonium (plural methylammoniums)
(organic chemistry, especially in combination) The univalent cation obtained by protonation of methylamine CH3NH3
Relative stabilization of methylammonium ions thus decreases with the number of methyl groups explaining the order of water basicity of methylamines. Source: Internet
In stark contrast, corresponding methylammonium cations always utilize all the available protons for donor NH–OH 2 bonding. Source: Internet