46% mgcl2 flake used for mgo board production 1. Used for mgo board production 2. Purity above 93% or above ... decomposition, 6), 712 (no water) °CBoiling point: 1412 °C (anhydrous)Description: six water content: white monoclinic crystal, easy deliquescence ... glass fiber tiles, decorative materials, sanitary ware, ceiling, floor brick, magnesia cement, ventilation pipes, anti-theft covers, fireproof ...