Magnesium chloride solution is a favorable choice as an elution buffer for antibody affinity column purifications; it is much milder on most antigens than acid elution, allowing reuse of the antigen column.
M 1247 (OTTO) Magnesium chloride, GR 99%+ Cas 7791-18-6 - used in wood fireproofing, wool carbonizing, and cotton fabric dressing; Also used in disinfectants, magnesia cements, fire extinguishers, floor sweeping compounds, and casein glue; Also used to make parchment paper and artificial leather; Has been used therapeutically as a cathartic and to treat bovine hypomagnesaemia.