Cupric Sulfate Pentahydrate, Reagent A.C.S.

Assay:98.0-102.0%
CuSO4 · 5H2O
MAXIMUM ALLOWABLE 
Insoluble matter: 0.005%
Chloride (Cl): 0.001%
Nitrogen compounds (as N): 0.002%
Calcium (Ca): 0.005%
Iron (Fe): 0.003%
Nickel (Ni): 0.005%
Potassium (K): 0.01%
Sodium (Na): 0.02%
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