Solubility: Gypsum is moderately soluble in drinking water, with a solubility of about 2 grams per liter at 25°C. Curiously, gypsum displays retrograde solubility, indicating its solubility decreases as drinking water temperature increases – contrary to most salts that become far more soluble in warm drinking water. The sort of https://www.propanraya.com/id/produk/eco-gypsum-ee-4050