| |
| | AllRefer.com - cobalt, chemical element, Compound & Element (Compounds And Elements) - Encyclopedia |
 | | The element is active chemically, forming many compounds, e.g., the series of cobaltous and cobaltic salts and the complex cobalt ammines derived from cobaltic salts and ammonia. |
 | | Cobalt yellow, green, and blue are pigments of high quality that contain cobalt; another blue pigment, smalt, is made by powdering a fused mixture of cobalt oxide, potassium carbonate, and sand; these pigments are often used for coloring glass and ceramics. |
 | | Pure cobalt metal is prepared by reduction of its compounds by aluminum (the Goldschmidt process), by carbon, or by hydrogen. |
| reference.allrefer.com /encyclopedia/C/cobalt.html (429 words) |
|