chromic acid hydrogenchromate A monovalent inorganic anion obtained by deprotonation of one of the two OH groups in chromic acid. hydrogen chromate InChI=1S/Cr.H2O.3O/h;1H2;;;/q+1;;;;-1/p-1 117.00164 hydrogen(tetraoxidochromate)(1-) CHEBI:33144 Gmelin:81997 116.92854 [CrO3(OH)](-) [H]O[Cr]([O-])(=O)=O SNQOSLDJBAESSM-UHFFFAOYSA-M chebi_ontology hydroxidodioxidochromate(1-) HCrO4(-) CrHO4 -1 chromium oxoanion chromate(2-) monovalent inorganic anion