Solubility: Gypsum Is reasonably soluble in h2o, which has a solubility of about two grams for each liter at 25°C. Interestingly, gypsum exhibits retrograde solubility, that means its solubility decreases as water temperature boosts – as opposed to most salts that develop into far more soluble in warm water. Gypsum, https://www.propanraya.com/id/produk/eco-gypsum-ee-4050