Na2SO4, commonly known as sodium sulfate, is a white crystalline solid that is highly soluble in water. It is often used in various industries, including glass manufacturing, detergents, and textiles. Sodium sulfate can be found naturally in mineral deposits and is also produced synthetically for commercial use. In addition to its industrial applications, Na2SO4 plays a role in the laboratory as a drying agent for organic solvents. Its ability to absorb water makes it useful in chemical processes where moisture needs to be controlled. Overall, sodium sulfate is a versatile compound with a wide range of uses.