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1708265 
Journal Article 
SOLUBILITY OF AMMONIA IN AQUEOUS-SOLUTIONS OF SODIUM-SULFATE AND AMMONIUM-SULFATE AT TEMPERATURES FROM 333.15 K TO 433.15 K AND PRESSURES UP TO 3-MPA 
Rumpf, B; Maurer, G 
1993 
Yes 
Industrial and Engineering Chemistry Research
ISSN: 0888-5885
EISSN: 1520-5045 
32 
1780-1789 
As part of an ongoing project dealing with experimental and theoretical work on phase equilibria in aqueous solutions containing weak electrolyte gases like ammonia, hydrogen cyanide, sulfur dioxide, or carbon dioxide, the solubility of ammonia in aqueous solutions of sodium sulfate and ammonium sulfate was measured by a synthetic method in the temperature range from 333.15 to 433.15 K at total pressures up to 3 MPa. The model proposed by Edwards et al. is used to correlate the data. That model is extended to include the formation of one or more solid phases. Experimental results and the correlations are reported and compared with literature data and other correlations.