Cobalt Products factory 1. Molecular Formula:Co3O4 2. CAS NO.:1308-06-1 3. Molecular Weight:240.797 4. Property: Black powder, no agglomeration. Density:6.11g/cm3, Soluble in acids and alkalis. Insoluble in water. 5. Sepcification(%): Co73min73min http://www.wqmetal.net/cobalt-products/