Chemistry and kinetics of I2 loss in urine distillate and humidity condensateTime-resolved molecular absorption spectrophotometry of iodinated ersatz humidity condensates and iodinated ersatz urine distillates across the UV and visible spectral regions are used to investigate the chemistry and kinetics of I2 loss in urine distillate and humidity condensate. Single contaminant systems at equivalent concentrations are also employed to study rates of iodine. Pseudo-first order rate constants are identified for ersatz contaminant model mixtures and for individual reactive constituents. The second order bimolecular reaction of elemental iodine with formic acid, producing carbon dioxide and iodine anion, is identified as the primary mechanism underlying the decay of residual I2 in ersatz humidity concentrate.
Document ID
19930057479
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Atwater, James E. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Wheeler, Richard R., Jr. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Olivadoti, J. T. (Umpqua Research Co. Myrtle Creek, OR, United States)
Sauer, Richard L. (NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 16, 2013
Publication Date
July 1, 1992
Subject Category
Inorganic And Physical Chemistry
Report/Patent Number
SAE PAPER 921314
Meeting Information
Meeting: SAE, International Conference on Environmental Systems