... as the flame retardant. Magnesium hydroxide, Mg(OH)2,We use high quality raw materials to select and processing. ... , DV50:10, 45um 100% passing through.L.O.I:30.2%, MgO:64%min, SiO2:4.0%max. In 25kg paper ... bags. Also we have other grade Mg(OH)2. For more infos, pls contact with us. magnesium hydroxide