Magnesium Calcium Alloy (MgCa)

The Magnesium Calcium alloy is primarily used in the removal of Bismuth from lead, for refinement purposes. The alkaline elements in the alloy react with the molten lead under controlled conditions. After treatment with Magnesium Calcium, the lead melt is cooled to the liquidus point which results in the alkaline–earth Bismuth compounds to separate and float to the top of the melt where they are removed by skimming the melt.