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https://pubchem.ncbi.nlm.nih.gov/compound/83718 Perrhenic acid | HO4Re | CID 83718 - PubChem Perrhenic acid | HO4Re | CID 83718 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities,... acidpubchem https://store.astm.org/uop887-89.html Rhenium in Perrhenic Acid and Ammonium Perrhenate by Spectrophotometry rheniumacidammoniumspectrophotometry