EVERYDAY SCIENCE

Detailed explanation-1: -Potassium nitrate is a chemical compound with a sharp, salty, bitter taste and the chemical formula KNO3. This alkali metal nitrate salt is also known as Indian saltpetre (large deposits of which were historically mined in India).

Detailed explanation-2: -Potassium nitrate is an inorganic salt with a chemical formula of KNO3. It is a natural source of nitrate and has been used as a constituent for several different purposes, including food preservatives, fertilizers, tree stump removal, rocket propellants, and fireworks.

Detailed explanation-3: -Potassium nitrate can be made by combining ammonium nitrate and potassium hydroxide. An alternative way of producing potassium nitrate without a by-product of ammonia is to combine ammonium nitrate, found in instant ice packs, and potassium chloride, easily obtained as a sodium-free salt substitute.

Detailed explanation-4: -The naturally occurring salts of nitrate which are present in form of powder and found in rocks and soil and used in fertilizers, gunpowder are known as saltpetre or saltpetre. As the nitrates are the source of nitrogen so, saltpetre are also known as nitre.