羧酸鹽的結構通式為R-COO-M，R表示烴基，M表示陽離子(絕大部分為金屬離子，也有銨根離子)。羧酸鹽是由羧酸和堿發(fā)生中和反應得到的，一般對應的羧酸酸性相對于無機強酸酸性較弱，可以向羧酸鹽的溶液中加入稀鹽酸，然后加入乙醇加熱，如果能夠有香味出現(xiàn)，那么說明發(fā)生了酯化反應也就說明了最初的鹽類為羧酸鹽。
Sodium 2-(pyrimidin-2-yl)acetate
Potassium 4-nitrobenzoate
Sodium 2-(2-amino-3-(4-bromobenzoyl)phenyl)acetate hydrate(2:2:3)
Potassium 4,6-dioxo-1,4,5,6-tetrahydro-1,3,5-triazine-2-carboxylate
Potassium (S)-5-(tert-butoxycarbonyl)-5-azaspiro[2.4]heptane-6-carboxylate
Sodium pivalate
Sodium (3R,5S,E)-7-(4-(4-fluorophenyl)-6-isopropyl-2-(N-methylmethylsulfonamido)pyrimidin-5-yl)-3,5-dihydroxyhept-6-enoate
Potassium (2R,3R)-2,3,4-trihydroxybutanoate
Sodium 2-(4-((2-oxocyclopentyl)methyl)phenyl)propanoate
N-Benzyl-2-((2,6-dimethylphenyl)amino)-N,N-diethyl-2-oxoethanaminium benzoate
Sodium 2-hydroxy-3-methylbenzoate
Ruthenate(4-), tris[[2,2'-bipyridine]-4,4'-dicarboxylato(2-)-N1,N1']-, hydrogen chloride (1:6:2)
1-Butyl-3-methylimidazolium acetate
Potassium 3-methoxy-3-oxopropanoate
Methyl β-D-glucuronate Sodium salt
Sodium 4-hydroxybenzoate
6-(2-(3-(3-Ethylbenzo[d]oxazol-3-ium-2-yl)allylidene)benzo[d]oxazol-3(2H)-yl)hexanoate
Sodium 2,3,4,5-tetrafluorobenzoate
Sodium 2,5-dihydroxybenzoate
Ammonium decanedioate
Nickel(II) stearate
Sodium (S)-2-hydroxypentanedioate
Potassium succinate trihydrate
Potassium 2-bromo-2,2-difluoroacetate
Sodium succinate hexahydrate
Sodium terephthalate
Sodium 3,3'-(anthracene-9,10-diyl)dipropanoate
Sodium 2-chloro-2,2-difluoroacetate
Potassium (S)-2,2-dimethyl-1,3-dioxolane-4-carboxylate
