What is a Potassium nitrite (KNO₂)?

Potassium nitrite (KNO₂) is an inorganic compound that appears as a colorless or white crystalline solid, highly soluble in water. It is a potassium salt of nitrous acid and is widely used as an oxidizing agent in various chemical processes. Potassium nitrite plays a crucial role in the manufacture of fireworks and explosives as it supplies oxygen to promote combustion reactions. It is also used as a food preservative, particularly in the curing of meats like sausages and ham, where it helps inhibit bacterial growth and preserve the color of the meat.

As a strong oxidizer, potassium nitrite can be unstable, especially under high heat, and may release nitrous oxide gases. It must be handled with care, avoiding moisture and storing it properly to prevent degradation. Safety is a concern, as potassium nitrite can be toxic if inhaled or ingested in high concentrations. Proper protective gear and good ventilation are necessary when working with this compound.

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