Sodium sulfate is a inorganic compound with the formula Na2SO4. It is a white crystalline solid that is commonly used in a variety of industries, including the production of detergents, paper, and glass.In the detergent industry, sodium sulfate is used as a filler or bulking agent, as well as a viscosity regulator. In the paper industry, it is used as a bleaching agent and to improve the strength and durability of paper products. In the glass industry, sodium sulfate is used as a flux to lower the melting point of glass and to improve the clarity of the final product.Sodium sulfate is also used in other applications such as textiles, oil recovery, and water treatment. It can also be used as a food additive to modify the texture and viscosity of certain foods.Sodium sulfate is generally considered safe when used in accordance with recommended guidelines, but excessive exposure can cause irritation to the skin, eyes, and respiratory system.