Sulfur-dioxide/water equilibria between 0 and 50 C - An examination of data at low concentrationsIn order to resolve the discrepancy noted in values currently used for the first dissociation constant of SO2 in water, the pertinent literature was critically examined and a value of 0.0132 M at 25 C was recommended. An expression correlating this value as a function of temperature for zero-50 C has been developed. Attention is also given to the literature for the Henry's law constant, and a value of 1.242 M/atm at 25 C is recommended. Ionic activity corrections and speciation in more concentrated solutions are discussed, and recommendations are made for estimating the activity coefficients of the various ionic species in solutions of moderate ionic strength.
Document ID
19830043977
Acquisition Source
Legacy CDMS
Document Type
Other - Collected Works
Authors
Maahs, H. G. (NASA Langley Research Center Hampton, VA, United States)