Magnesium Hydroxide (Mg(OH)2) CAS No.1309-42-8 GY-MG80 Magnesium Hydroxide Flame Retardant CAS No. 1309-42-8 GY-MG40 Magnesium Hydroxide Flame Retardant CAS No. 1309-42-8 CAS No. 1309-42-8 Magnesium Hydroxide Flame Retardant