Sodium Sulfate
chemical formula: Na2SO4·10H2O
( powder )
Sodium Sulfate is a chemical widely used in industry with a variety of applications. It is used in the glass industry as a firing agent, in the textile industry as a leveling agent (to aid in the dyeing fabrics), and as a thermal storage medium in solar heating systems due to its high heat storage capacity (in the phase change from solid to liquid).