[{"from": "human", "value": "Provide a description of this molecule. [O].[O].[O-1][Cr][=Branch1][C][=O][=Branch1][C][=O][O-1].[Ca+2]"}, {"from": "gpt", "value": "The molecule is a chemical compound of calcium and hexavalant chromium. It is used as a pigment, a corrosion inhibitor, and in electroplating, photochemical processing, and industrial waste treatment. Hexavalent chromium refers to chemical compounds that contain the element chromium in the +6 oxidation state. Chromium(VI) is more toxic than other oxidation states of the chromium atom because of its greater ability to enter cells and higher redox potential. (L16, L52)"}]