
The SciencesApril 5, 1913
Ammonium Sulphate from Ammonia and Sulphur Dioxide
Ammonia and Hydrogen Sulphide from Coal Gas and the Direct Production of Ammonium Sulphate

Ammonium Sulphate from Ammonia and Sulphur Dioxide
Ammonia and Hydrogen Sulphide from Coal Gas and the Direct Production of Ammonium Sulphate