[{"from": "human", "value": "Describe this molecule. [C][=Branch1][C][=O][Branch1][C][O-1][O-1].[Ba+2]"}, {"from": "gpt", "value": "The molecule is a white powder. It is insoluble in water and soluble in most acids, with the exception of sulfuric acid. It has a specific gravity of 4.275. It is toxic by ingestion."}]