Abstract
A new spectroscopic method was developed to measure in situ the concentrations of dissolved sulfur (IV) species from SO2 absorption in electrolyte systems like seawater and desalination brine. In a recent paper we described UV spectroscopic measurements to fit a thermodynamic model yielding a considerably improved description of the absorption equilibrium. Now, combining this model with a comprehensive spectroscopic calibration, the molar absorptivities of the sulfur (IV) species (SO2(aq), HSO3−, SO32− und SO2Cl−) were determined for a wavelength range from 200 to 350 nm. With the molar absorptivities the concentrations of the sulfur species can be determined straight from a UV spectrum. The validity of the values was cross-checked in different electrolyte systems comparing calculated and measured spectra. The new method yields a very good representation of the species concentrations in SO2 absorption solutions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
