Solubility: Gypsum is moderately soluble in drinking water, that has a solubility of about 2 grams per liter at twenty five°C. Curiously, gypsum exhibits retrograde solubility, which means its solubility decreases as h2o temperature increases – in contrast to most salts that develop into extra soluble in warm drinking water. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050