Solubility: Gypsum is reasonably soluble in drinking water, having a solubility of about two grams for every liter at 25°C. Interestingly, gypsum exhibits retrograde solubility, this means its solubility decreases as water temperature will increase – in contrast to most salts that develop into far more soluble in sizzling water. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050