
English Name: Magnesium Carbonate(Magnesite) Molecular Formula:MgCO3 Content(MgO): 40.0 43.5% Insoluble Substance in Acid: <0.05% Arsenic(Base on As): <3mg/kg Calcium Oxide: <0.6% Heavy Metal(Base on Pb): <0.003% Lead: <10mg/kg Soluble Salt: <1% Use: Drying agent; color fixative; carrier; leavening agent; Acidity chaincutting agent,etc.