SMILES: [O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Fe+3].[Fe+3]
Description: The molecule is a compound of iron and sulfate in which the ratio of iron(3+) to sulfate ions is 3:2. It has a role as a catalyst, a mordant and an astringent. It is a metal sulfate and an iron molecular entity. It contains an iron(3+).