Cobalt powder CAS NO.: 7440-48-4HS Code: 8105209010Appearance: Gray irregular powderNature: 1 . Soluble in acid and magnetic;2. It is easily oxidized in humid air.Quality index:Test itemsTest standardsTest resultsCo*%≥99.999.97C %≤0.050.017O %≤0.70.32Ni %≤0.0050.0017Cu %≤0.0050.0005Zn %≤0.0030.0005Pb %≤0.0030.0010Fe %≤0.0050.0022Ca %≤0.0050.0015Cd %≤0.0060.0005Na %≤0.0050.0011Si %≤0.0080.0015Mg %≤0.0040.0005Mn %≤0.0050.0005Al %≤0.0080.0015S %≤0.0050.0009（*）Co(%)=100%-（Ni+Cu+Zn+Pb+Fe+Ca+Na+Cd+Si+Mn+Al+C+S）Application：Widely used in aviation, aerospace, electrical appliances, machinery manufacturing, chemical and ceramic industries.Packaging：25kg / drum, packed in iron drum.