what is calcium nitrate used for
Calcium nitrate, also called Norgessalpeter (Norwegian saltpeter), is the inorganic compound with the formula Ca(NO 3) 2. This colourless salt absorbs moisture from the air and is commonly found as a tetrahydrate.It is mainly used as a component in fertilizers but has other applications.he calcium ion accelerates formation of calcium hydroxide and thus precipitation and setting. This effect is used also in cold weather concreting agents as well as some combined plasticizers. The nitrate ion leads to formation of iron hydroxide, whose protective layer reduces corrosion of the concrete reinforcement.