Calcium nitrate called as Norgessalpeter (Norwegian salpeter), is an inorganic compound with the formula Ca(NO3)2.. This colourless salt absorbs moisture from the air and is commonly found as a tetrahydrate.
The fertilizer grade (15.5-0-0 + 19% Ca) is popular in the greenhouse and hydroponics trades; it contains ammonium nitrate and water, as the "double salt" {\displaystyle {\ce {5Ca(NO3)2.NH4NO3.10H2O} {\displaystyle {\ce {5Ca(NO3)2.NH4NO3.10H2O}. This is called calcium ammonium nitrate.
Calcium nitrate tetrahydrate and trisodium phosphate were used as calcium and such that the delivered dose was equivalent to the free curcumin dose.
It is mainly used as a component in fertilizers but has other applications. Nitrocalcite is the name for a mineral which is a hydrated calcium nitrate that forms as an efflorescence where manure contacts concrete or limestone in a dry environment as in stables or caverns.
