Potassium formate is a kind of organic salt, the chemical formula is hcook, which is a white solid. It is very easy to absorb moisture and has reducibility. It can react with strong oxidants with a density of 1.9100g/cm3. It is easily soluble in water, non-toxic and non corrosive. The water solution is colorless and transparent, and the specific gravity of saturated solution is 1.58 g / cm3.