Potassium Formate Molecular Formula: HCOOK Molecular Weight: 84.12 Cas No: 590-29-4 Potassium FormateMolecular Formula: HCOOKMolecular Weight: 84.12Cas No: 590-29 ... /cm3, easily soluble in water, non-toxic and non-corrosive. Quality Spec.: Item SpecificationHCOOK, %, ≥96.0074.0Moisture, %, ≤0.5 Appearancewhite crystal ... in cement; or used in the manufacture of carbon black. Potassium Formate