Nitre Cake

The preparation of alkali carbonate from alkali nitrate.—The sodium nitrate required for the manufacture of nitric acid, and for the sulphuric acid chambers is converted into nitre-cake—sodium acid sulphate, and is utilized as salt-cake in making alkali. Many of the proposals for converting sodium nitrate into the carbonate, really aim at getting the alkali as a by-product in the manufacture of... 

SYNS GBS NITRE CAKE SODIUM ACID SULFATE SODIUM BISULFATE, FUSED SODIUM HYDROGEN SULFATE, soUd (UN 1821) (DOT) SODIUM HYDROGEN SULFATE, solution (LiN 2837) (DOT) SODIUM PYROSULFATE SULFURIC ACID, MONOSODIUM SALT... 

This pyrosulphate (or disulphate) is run off in a fluid condition into iron pans, where it solidifies and is used for the manufacture of normal sodium sulphate by heating with salt, NaCl, in mechanical sulphate furnaces. Part of this nitre cake, as the product is called, is now converted into sodium sulphide, Na.jS. 

Nitre. See Potassium nitrate Nitre cake. See Sodium bisulfate Nitrene 100 SD. See Linoleamide DEA Nitrene 1112a, Nitrene 11230, Nitrene 13026, Nitrene A-309, Nitrene A-567, Nitrene C Extra, Nitrene C. See Cocamide DEA Nitrene L-90. See Lauramide DEA Nitrene N. See Cocamide DEA Nitrene NO. See Oleamide DEA Nitric acid... 

Synonyms Acid sodium sulfate Nitre cake Sodium acid sulfate Sodium acid sulfate solid Sodium bisulfate, fused Sodium bisulfate solid Sodium hydrogen sulfate Sodium pyrosulfate Sulfuric acid monosodium salt Empin cal HNa04S Formula NaHS04... 

One can distill HNO3 from NaN03 plus concentrated H28O4 by heating to 130 °C, leaving nitre cake , NaH804. 

---