... regulating agent or supplement of magnesium element in food.... Physicochemical Properties: White amorphous powder, nontoxic, odorless ... it also can be used to manufacture high-grade glass articles, magnesium salt, pigment, paint and ... pharmaceutical industry. And also can be used as desiccant, color retention agent, carrier and anti-caking ... , Soda Method, Ammonium Bicarbonate Method MgCO3, Food Grade