Solubility: Gypsum Is moderately soluble in water, having a solubility of about two grams for every liter at twenty five°C. Curiously, gypsum exhibits retrograde solubility, indicating its solubility decreases as drinking water temperature improves – in contrast to most salts that come to be more soluble in very hot water. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050