Hydration Of Anhydrite: Gypsum could also variety throughout the hydration of anhydrite (CaSO₄). Anhydrite can be a calcium sulfate mineral that lacks the water molecules current in gypsum. When exposed to h2o, anhydrite undergoes a hydration response, incorporating water molecules into its construction and transforming into gypsum. Impurities in refinery https://www.propanraya.com/id/produk/eco-gypsum-ee-4050