- an impure form of sodium sulfate, especially as obtained by the interaction of sulfuric acid and common salt in the synthesis of hydrochloric acid: used chiefly in the manufacture of glass, ceramic glazes, soaps, and sodium salts.
Origin of salt cake
Examples from the Web for salt cake
Historical Examples of salt cake
The gaseous mixture is drawn by a chimney draught through the coke towers, as in the making of salt-cake.
The production of salt-cake or crude sodium sulphate is carried out in two stages.
The mixture of common salt and vitriol is charged into the salt-cake pot, which is heated by a fire below.
Mechanical furnaces are now used to a large extent for the salt-cake process.
- an impure form of sodium sulphate obtained as a by-product in several industrial processes: used in the manufacture of detergents, glass, and ceramic glazes