Calcium nitrate tetrahydrate

grade

ACS reagent

Quality Level

200

Assay

99%
99.0-103.0% (ACS specification)

form

flakes
powder crystals or granules

impurities

≤0.005% insolubles

pH

5.0-7.0 (25 °C 5%)

mp

44 °C (dec.) (lit.)

density

1.86 g/mL at 25 °C

anion traces

chloride (Cl^–): ≤0.005%
nitrite (NO₂^–): ≤0.001%
sulfate (SO₄^2-): ≤0.002%

cation traces

Ba: ≤0.005%
Fe: ≤5 ppm
K: ≤0.005%
Mg: ≤0.05%
Na: ≤0.01%
Sr: ≤0.05%
heavy metals: ≤5 ppm (by ICP-OES)

SMILES string

O.O.O.O.[Ca++].[O-][N+]([O-])=O.[O-][N+]([O-])=O

InChI

1S/Ca.2NO3.4H2O/c;2*2-1(3)4;;;;/h;;;4*1H2/q+2;2*-1;;;;

InChI key

ICSSIKVYVJQJND-UHFFFAOYSA-N