Potassium nitrate is a chemical compound with the formula KNO3. It is an ionic salt of potassium ions K+ and nitrat...
Potassium nitrate is a chemical compound with the formula KNO3. It is an ionic salt of potassium ions K+ and nitrate ions NO3a . It occurs as a mineral niter and is a natural solid source of nitrogen.
Molar mass: 101.1032 g/mol
IUPAC ID: Potassium Nitrate
Melting point: 334 A C
Boiling point: 400 A C
Soluble in: Water, Glycerol, Ammonia
Potassium nitrate is mainly used in fertilizers, as a source of nitrogen and potassium a two of the macronutrients for plants. When used by itself, it has an NPK rating of 13-0-45.
Potassium nitrate is an efficient oxidizer, producing a lilac-colored flame upon burning due to the presence of potassium. It is one of the three components of black powder, along with powdered charcoal (substantially carbon) and sulfur, both of which act as fuels in this composition. As such it is used in black powder rocket motors, but also in combination with other fuels like sugars in "rocket candy". It is also used in fireworks such as smoke bombs, made with a mixture of sucrose and potassium nitrate. It is also added to maintain an even burn of the tobacco and is used to ensure complete combustion of paper cartridges for cap and ball revolvers.
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