Sodium sulfate monohydrate is a chemical compound with the formula Na2SO4·H2O. It consists of two sodium ions, one sulfate ion, and one water molecule. This compound is commonly found in nature as the mineral mirabilite and is used in various industrial applications, including glass manufacturing and detergents. In its solid form, sodium sulfate monohydrate appears as white, crystalline granules. It is soluble in water, and when dissolved, it dissociates into its constituent ions. This property makes it useful in processes that require ionic solutions, such as in the production of sodium sulfate for various chemical reactions.