Synonyms: Formic acid sodium salt CAS: 141-53-7 Molecular Formula: HCOONa Molecular Weight: 68.01 g/mol Test Specification Appearance Fine white crystals Identification To pass test Assay (HCOONa) 99.0% min. Calcium (Ca) 0.005% max. Chloride (Cl) 0.001% max. Heavy Metals (as Pb) 5 ppm max. Insoluble Matter 0.005% max. Iron (Fe) 5 ppm max. Sulfate (SO4) 0.001% max.