Potassium nitrate is an inorganic compound, commonly known as nitrate or soil nitrate, with the chemical formula KNO3. It is a potassium containing nitrate salt, usually appearing as colorless and transparent rhombohedral or rhombic crystals, and may also be white particles or crystalline powders. Odorless, salty and refreshing. It absorbs minimal moisture in the air, is not prone to clumping, is soluble in water, soluble in liquid ammonia and glycerol, and insoluble in anhydrous ethanol and ether.

Potassium nitrate is a strong oxidant that can cause combustion and explosion when in contact with organic matter, and produce toxic and irritating odors. Therefore, potassium nitrate should be stored in a cool and dry place, away from fire and heat sources. Avoid storing and transporting together with reducing agents, acids, flammable materials, and metal powders

physical property:

Melting point: 334 ℃

Flash point: 400 ℃

Density: 2.109 g/cm3

Appearance: Colorless transparent prismatic or white particles or crystalline powder. Spicy and salty with a cool sensation. Micro deliquescence, with less deliquescence than sodium nitrate.

Solubility: soluble in water, insoluble in anhydrous ethanol and ether. When dissolved in water, it absorbs heat and the temperature of the solution decreases.

chemical property:

This product can cause combustion and explosion upon contact or impact with organic matter, phosphorus, sulfur, and heating.