| Subject | English | French |
| gen. | basic cobaltous carbonate, monohydrate | carbonate basique de cobalt, monohydraté |
| chem. | cobaltous acetate | acétate de cobalt |
| chem. | cobaltous acetate | acétate cobalteux |
| gen. | cobaltous acetate, tetrahydrate | acétate de cobalt, tétrahydraté |
| chem. | cobaltous ammonium sulphate | sulfate d'ammonium cobalteux |
| chem. | cobaltous arsenate | arséniate cobalteux |
| chem. | cobaltous carbonate | carbonate cobalteux |
| food.serv. | cobaltous carbonate | carbonate de cobalt n. m. |
| chem. | cobaltous carbonate | carbonate de cobalt |
| chem. | cobaltous chloride | protochlorure de cobalt |
| chem. | cobaltous chloride | chlorure de cobalt |
| chem. | cobaltous chloride | chlorure cobalteux |
| gen. | cobaltous chloride, hexahydrate | chlorure de cobalt, hexahydraté |
| chem. | cobaltous chromate | chromate cobalteux |
| chem. | cobaltous hydroxide | CoOH2 |
| chem. | cobaltous hydroxide | hydrate de protoxyde de cobalt |
| chem. | cobaltous hydroxide | hydroxyde cobalteux |
| chem. | cobaltous iodide | iodure de cobalt |
| chem. | cobaltous linoleate | linoléate cobalteux |
| chem. | cobaltous linoleate | linoléate de cobalt |
| chem. | cobaltous naphthenate | naphténate cobalteux |
| chem. | cobaltous nitrate | nitrate de cobalt |
| chem. | cobaltous nitrate | protonitrate de cobalt |
| chem. | cobaltous nitrate | nitrate cobalteux |
| gen. | cobaltous nitrate, hexahydrate | nitrate de cobalt, hexahydraté |
| chem. | cobaltous oleate | oléate cobalteux |
| chem. | cobaltous oxalate | proto-oxalate de cobalt |
| chem. | cobaltous oxalate | oxalate cobalteux |
| chem. | cobaltous oxide | sesquioxyde de cobalt |
| chem. | cobaltous oxide | oxyde de cobalt |
| chem. | cobaltous oxide | oxyde cobalteux |
| chem. | cobaltous oxide | protoxyde de cobalt |
| chem. | cobaltous oxide | oxydes de cobalt |
| chem. | cobaltous phosphate | phosphate tertiaire de cobalt |
| chem. | cobaltous phosphate | rose de cobalt |
| chem. | cobaltous phosphate | phosphate de cobalt |
| chem. | cobaltous phosphate | phosphate cobalteux |
| chem. | cobaltous resinate | résinate cobalteux |
| chem. | cobaltous resinate | résinate de cobalt |
| chem. | cobaltous sulphate | sulfate de cobalt |
| chem. | cobaltous sulphate | sulfate cobalteux |
| gen. | cobaltous sulphate, heptahydrate | sulfate de cobalt, heptahydraté |
| gen. | cobaltous sulphate, monohydrate | sulfate de cobalt, monohydraté |
| chem. | cobaltous tungstate | tungstate cobalteux |