Food colourings - Import export

Sodium sulfate (Na2SO4), sodium sulphate or sulfate of soda is the inorganic compound with formula Na2SO4 as well as several related hydrates, white solid and highly soluble in water It is mainly used as a filler in the manufacture of powdered home laundry detergents and in the Kraft process of paper pulping for making highly alkaline sulfides Applications: As filler in powdered home laundry detergents In the Kraft process for the manufacture of wood pulp As a fining agent, to help remove small air bubbles from molten glass To help levelling in textile industry As a diluent for food colours As a heat storage in in some applications Properties: CAS Number 7757-82-6 Chemical formula Na2SO4 Molar mass 142.04 g/mol (anhydrous) Appearance white crystalline solid hygroscopic Odor odorless Density 2.664 g/cm3 (anhydrous) Melting point 884 °C (anhydrous) Boiling point 1,429 °C (anhydrous) Solubility in water 4.76 g/100 mL @0 °C 28.1 g/100 mL @25 °C 42.