CAS 1305-78-8 Special powder(calcium powder) for building coating 90% 1, Best quality & competitive price 2, ISO ... facility CAS 1305-78-8 Special powder(calcium powder) for building coating 90%1, Best quality & competitive price2, ISO facility ... used in flue gas desulfurization, sewage disposal, water absorber of plastic products, organic synthesis etc. Spec.Item Content 1Calcium Oxide902Iron0. ...