... and thermal insulation materials resistant to high temperature. Light magnesium carbonate with a basis of asbestos is high-quality isolation material ... , magnesium salt, pigment, paint and chemicals for daily use, etc. It can be used as anti-acid agent in pharmaceutical industry. ... Carbonization, Brine, Limestone Carbonization, Soda Method, Ammonium Bicarbonate Method Reagent Grade Magnesium Carbonate