Saltpeter
Saltpeter
Saltpeter (pronounced: /ˈsɔːltˌpiːtər/), also known as potassium nitrate, is a chemical compound with the formula KNO3. It is a naturally occurring mineral source of nitrogen.
Etymology
The term "saltpeter" comes from the Latin "sal petrae", meaning "stone salt" or "rock salt". It is believed to have been named for its common occurrence on cave walls and in the soil.
Description
Saltpeter is a white, crystalline solid that is soluble in water. It is noncombustible but enhances the burning of combustible materials. If large quantities are involved in a fire or if the combustible material is finely divided, an explosion may result.
Uses
Saltpeter has been used for centuries in various applications. It is most commonly known for its use in gunpowder, but it is also used in fertilizers, food preservation, and the production of nitric acid.
Related Terms
External links
- Medical encyclopedia article on Saltpeter
- Wikipedia's article - Saltpeter
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