Magnesium oxide powder Testing Method : HG/T2573-2012 Purity(MgO) 97.0%min Calcium Oxide(CaO) 1.0%max Silicon Oxide(SiO2) 0.5%max Chloride(CL) 0.5%max Sulfate(SO3) 0.3%max Iron(Fe) 0.3%max Aluminum(Al) 0.2%max Loss on Ignition 2.0% max Bulk Density(g/ml) / Mesh 2.0-8.0m
