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:8.9 g per cm32 ... point:35204, Boiling point:41905,Color:steel gray looking,6,Use: because of hard and high melting point ,so it using ... ,purity:99.9%8,mesh:10-18um Purity 99.9% Cobalt powder and Cobalt oxide powder