Solubility: Gypsum Is reasonably soluble in drinking water, having a solubility of about two grams per liter at twenty five°C. Curiously, gypsum reveals retrograde solubility, this means its solubility decreases as drinking water temperature improves – in contrast to most salts that turn into more soluble in warm drinking water. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050