Calcium Nitrate Tetrahydrate (Calcium Nitrogen Oxide) (Ca(NO3)2*4H2O)-Powder
Product Description
Characteristic
Calcium nitrate, also called Norgessalpeter (Norwegian saltpeter), 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.
Chemical formula: Ca(NO3)2
Molar mass:164.088 g/mol (anhydrous) 236.15 g/mol (tetrahydrate)
Appearance:colorless solid hygroscopic
Density:2.504 g/cm3 (anhydrous) 1.896 g/cm3 (tetrahydrate)
Melting point:561 °C (1,042 °F; 834 K) (anhydrous) 42.7 °C (109 °F; 316 K) (tetrahydrate)
Boiling point:decomposes (anhydrous) 132 °C (270 °F; 405 K) (tetrahydrate)
Solubility in water: anhydrous: 1212 g/L (20 °C) 2710 g/L (40 °C)
tetrahydrate: 1050 g/L (0 °C) 1290 g/L (20 °C) 3630 g/L (100 °C)
Solubility:soluble in ammonia almost insoluble in nitric acid
Solubility in ethanol:51.4 g/100 g (20 °C) 62.9 g/100 g (40 °C)
Solubility in methanol:134 g/100 g (10 °C) 144 g/100 g (40 °C) 158 g/100 g (60 °C)
Solubility in acetone:16.8 g/kg (20 °C)
Acidity (pKa):6.0
Magnetic susceptibility (χ):-45.9·10−6 cm3/mol
Crystal structure: cubic (anhydrous) monoclinic (tetrahydrate)
Application
It is mainly used as a component in fertilizers but has other applications.