anhydrous calcium sulfate การใช้

• When gypsum is heated in air it loses water and converts first to calcium sulfate hemihydrate, ( bassanite, often simply called " plaster " ) and, if heated further, to anhydrous calcium sulfate ( anhydrite ).
• For an open system with upstream flow meter, water ( e . g ., anhydrous calcium sulfate ) and CO 2 ( e . g ., a carbon dioxide adsorbent like Ascarite II, a registered trademark of the Arthur H . Thomas Co . ) removed prior to oxygen analyzer, a suitable equation is