Solubility of the potassium salts of nitrogen-sulfur compounds in aqueous solution

The aqueous solubility of the potassium salts of hydroxyimidodisulfate (HADS), hydroxysulfamic acid (HAMS), nitridotrisulfate (ATS), and imidodisulfate (ADS) have been determined by Raman spectrometry and ion chromatography over a temperature range of 0-50°C. The compounds were synthesized and saturated solutions were prepared in a controlled-temperature bath. The solutions were diluted with either a reference solution, for Raman analysis, or with water, for ion chromatographic analysis. Equations for the solubilities were derived as a function of temperature. The effects of the solubilities of the nitrogen-sulfur compounds on the operation of wet flue gas scrubbing systems is discussed.