Potassium Nitrate and Its Hazards Potassium nitrate is a chemical compound with the chemical formula KNO3. Potassium Nitrite is used as oxidizing agent and corrosion inhibitor in washing with hot potash for removal of Co2. Any questions regarding high-grade nicotine compounds, call us at: 7900955125! in Healhwith bgpgroup.biznicotine-supplierpotassium-nitrateby 2 users