[{"from": "human", "value": "Provide a brief overview of this molecule. [O].[O].[Co]"}, {"from": "gpt", "value": "The molecule is a hydroxide of cobalt. It occurs in two forms, either as a rose-red powder, which is the more stable of the two forms, or as bluish-green powder. It is used as a drying agent for paints, varnishes, and inks, in the preparation of other cobalt compounds, as a catalyst, or in the manufacture of battery electrodes. Cobalt is a metallic element with the atomic number 27. It is found naturally in rocks, soil, water, plants, and animals. In small amounts cobalt is an essential element for life, as it is part of vitamin B12. However, excess exposure is known to exhibit toxic effects. (L29, L30, L490)"}]