[{"from": "human", "value": "Provide a description of this molecule. [NH2-1].[NH2-1].[Mg+2]"}, {"from": "gpt", "value": "The molecule appears as a whitish to gray-colored crystalline solid. Denser than water. Contact may irritate skin, eyes and mucous membranes. Vapors may be toxic by inhalation. Used to make other chemicals."}]