Solubility: Gypsum is moderately soluble in h2o, having a solubility of about two grams per liter at twenty five°C. Apparently, gypsum displays retrograde solubility, that means its solubility decreases as h2o temperature increases – in contrast to most salts that come to be far more soluble in sizzling drinking water. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050