The desired products are nitrogen and carbon dioxide as gases, and potassium sulphate and carbonate as solids.
The filtrate was evaporated to a small bulk, cooled, and filtered from crystals of potassium sulphate.
It is used in the preparation of nearly all other potassium salts, and, together with potassium sulphate, is used as a fertilizer.
Addition of alcohol caused complete precipitation of potassium sulphate.
An alum in which the potassium sulphate of common alum is replaced by a like salt of sodium.
From a dilute solution of alum, aluminum hydroxide is absorbed by the hair, the potassium sulphate remaining in solution.
The product is quite free from potassium sulphate, and is nearly free from both potassium chloride and silicates.
It fuses; and at a much higher temperature is converted into potassium sulphate with loss of sulphuric acid.
Write equations for the preparation of potassium sulphate; of potassium acid carbonate.