Which of the following Chemicals is Known as Saltpeter?
Answer: (2) Potassium Nitrate
Potassium Nitrate chemical is known as Saltpeter. It is a critical component of gunpowder and a food preservative.
About Saltpeter –
Chemical formula – KNO3
Molar mass – 101. 1032 g/mol
Density – 2.109 g/cm cube.
Melting point – 334 degree centigrate
Boiling point – 400 degree centigrate
It is lightly soluble in cold water but very soluble in hot water.