Solubility: Gypsum is moderately soluble in h2o, using a solubility of about 2 grams for each liter at twenty five°C. Apparently, gypsum displays retrograde solubility, this means its solubility decreases as drinking water temperature raises – not like most salts that come to be much more soluble in warm water. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050