Electron impact mass spectra of some salts of carboxylic acids with alkali (group Ia) metals

Thirteen of the salts of the alkali metals (Li, Na, K, Rb, Cs) with acetic, 2,2‐dimethylpropionic, trifluoroacetic and heptafluorobutyric acid have been found to be sufficiently volatile to give mass spectra under normal electron impact conditions. The metal containing ions observed include (M=metal): [M] + , [MO] + , [MCO 2 ] + , [M 2 ] +· , [M 2 O] +· , [M 2 CO 2 ] +· and the cluster ions [M n (carboxylate) n ‐1 ] + for n = 2–8.