can't read?
Calcium nitrate - is the inorganic compound with the formula Ca(NO3)2. This colourless salt absorbs moisture from the air and is commonly found as a tetrahydrate.
C 1456 (OTTO) Calcium nitrate, hydrate, 99.997% Cas no 13477-34-4 - used as a nitrogenous fertilizer and a corrosive inhibitor in diesel fuels. It is utilized in plant cells for culture experiments.