Solubility: Gypsum is reasonably soluble in water, that has a solubility of about 2 grams per liter at twenty five°C. Apparently, gypsum exhibits retrograde solubility, this means its solubility decreases as water temperature increases – not like most salts that grow to be far more soluble in scorching drinking water. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050