[{"from": "human", "value": "What can you tell me about this molecule? [O-1][Cr][=Branch1][C][=O][=Branch1][C][=O][O][Cr][=Branch1][C][=O][=Branch1][C][=O][O-1].[K+1].[K+1]"}, {"from": "gpt", "value": "The molecule appears as orange red crystals. Denser than water and soluble in water. No distinctive odor. May severely irritate the eyes and respiratory tract. Avoid contact with organic materials. Noncombustible. Used in pyrotehnic displays with tungsten and iron."}]