Magnesium nitrate (Mg(NO3)2) is a white, crystalline, hygroscopic solid that's highly soluble in water and ethanol.

Potassium nitrate (KNO3), also known as saltpeter, is a chemical compound with various applications. It's a white, crystalline, water-soluble salt that naturally occurs as the mineral nitre.

Calcium nitrate is a water-soluble inorganic compound with the chemical formula Ca(NO3)2.