Brucite : chemical formula is Mg(OH)2 (Magnesium Hydroxide/Hydrate) Details: white hexagonal crystal or amorphous powder. Water solution is alkaline, the Relative density is2.36g/ cubic meters. It can solute in acid and ammonium salt, almost insoluble in water and alcohol. In water solubility degree (18 °C)is 0009g / 100g . Easy to absorb carbon dioxide in the air. At 350 °C,decomposed into magnesium oxide and water. Above 500 °C, lose water into magnesium oxide. Application: Flame retardant, refractory, agriculture, desulfurization, water treatment, etc.