Calcium Nitrate Tetrahydrate, Reagent A.C.S.

Assay:99.0-103.0%
Ca(NO3)2 · 4H2O
pH of a 5% solution 5.0-7.0 at 25 °C
MAXIMUM ALLOWABLE 
Insoluble matter: 0.005%
Chloride (Cl): 0.005%
Nitrite (NO2): 0.001%
Sulfate (SO4): 0.002%
Barium (Ba): 0.005%
Heavy metals (as Pb): 5 ppm
Iron (Fe): 5 ppm
Magnesium (Mg): 0.05%
Potassium (K): 0.005%
Sodium (Na): 0.01%
Strontium (Sr): 0.05%
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