1682. Calcium Nitrate

Nomenclature

CAS number: 10124-37-5
Nitric acid calcium salt (2:1).
CaN2O6; mol wt 164.09.
Ca 24.42%, N 17.07%, O 58.50%.
Ca(NO3)2.

Description and references

Prepn: Gmelins, Calcium (8th ed.) 28B, 59-69, 341-382 (1956).

Properties

Deliquesc granules, mp ≈560°. Very sol in water, heat being evolved; freely sol in methanol, ethanol, acetone. Almost insol in concd HNO3. pH of 5% aq soln 6.0. Oxidizer. Keep well closed. Note: Ca(NO3)2 crystallizes also with 4H2O (30.5%), mp 45°. Technical flake usually contains 28.6% H2O.

Derivative

Tetrahydrate.

Nomenclature

CAS number: 13477-34-4
CaN2O6.4H2O; mol wt 236.15.
Ca 16.97%, N 11.86%, O 67.75%, H 3.41%.

Use

In explosives, fertilizers, matches, pyrotechnics; manuf of incandescent mantles, radio tubes, HNO3; corrosion inhibitor in diesel fuels.