Nickel Carbonate Powder, Reagent

Limit 
Assay: 47.0 - 51.2%
Cobalt: 600 ppm max.
Iron: 100 ppm max.
Copper: 10 ppm max.
Zinc: 10 ppm max.
Manganese: 20 ppm max.
Magnesium: 300 ppm max.
Calcium: 700 ppm max.
Chloride: 30 ppm max.
Sodium: 0.4% max.
Sulfur: 0.3% max.
If you see this specification and nothing else
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Barker Industries Product Page.