Solubility: Gypsum is reasonably soluble in h2o, which has a solubility of about 2 grams for every liter at 25°C. Curiously, gypsum displays retrograde solubility, which means its solubility decreases as h2o temperature boosts – in contrast to most salts that grow to be much more soluble in warm water. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050