Na2CaSO422H2O

Na2CaSO422H2O is the chemical formula for a hydrated salt of sodium and calcium sulfate. This compound is commonly known as Glauber's salt decahydrate, though that name is more typically associated with the sodium sulfate decahydrate (Na2SO4·10H2O). The specific compound Na2CaSO422H2O represents a double salt where calcium sulfate is incorporated into the hydrated sodium sulfate structure. It is important to distinguish this from the more common anhydrous or decahydrate forms of sodium sulfate. The presence of calcium and the higher hydration level significantly alters its properties compared to simple sodium sulfate. This compound can be formed under specific conditions of concentration and temperature in aqueous solutions containing both sodium sulfate and calcium sulfate. Its crystalline structure and solubility are distinct from its constituent salts. Research into Na2CaSO422H2O often focuses on its formation, stability, and potential applications, though it is less commercially significant than other sulfate hydrates. Its existence highlights the complex phase diagrams that can occur in multi-component aqueous systems.