Calcination: The powdered gypsum is heated to eliminate h2o molecules, manufacturing distinctive varieties of plaster according to the temperature and period of heating. Soil h2o opportunity monitoring: a gypsum block can be inserted in to the soil, and its electrical resistance could be calculated to derive soil humidity.[forty six] Sodic https://www.propanraya.com/id/produk/eco-gypsum-ee-4050