We sell Cobalt Powder , Cobalt oxide powder, Cobalt oxalate, can sell at any quantity. Specification for our Cobalt powder , Cobalt oxide powder and Cobalt oxalate(Rare metal)1,Density ... 35204, Boiling point:41905,Color:steel gray looking,6,Use: because of hard and high melting point ,so ... weapon and metal combination etc.7,purity:99.9%8,mesh:10-18um Purity 99.9% Cobalt powder and Cobalt oxide powder