Provider: ingentaconnect
Database: ingentaconnect
Content: application/x-research-info-systems
TY - ABST
AU - Max, Jean-Joseph
AU - Chapados, Camille
TI - Interpolation and Extrapolation of Infrared Spectra of Binary Ionic Aqueous Solutions
JO - Applied Spectroscopy
PY - 1999-12-01T00:00:00///
VL - 53
IS - 12
SP - 1601
EP - 1609
KW - PURE KCL SOLVATED WATER
KW - EIGENSPECTRA
KW - PURE NACL SOLVATED WATER
KW - SPECTRUM INTERPOLATION
KW - INFRARED SPECTROSCOPY
KW - ATR SPECTROSCOPY
KW - SPECTRUM EXTRAPOLATION
KW - FACTOR ANALYSIS
KW - LIQUID
KW - AQUEOUS SOLUTIONS
N2 - Factor analysis of the attenuated total reflection (ATR) absorbance spectra of aqueous saline solutions has shown that these spectra are linear combinations of two eigenspectra: pure water and salt-solvated
water. This paper outlines the general equations needed to formalize these experimental results. In the case of binary salts in aqueous solutions, the equations allow interpolation and extrapolation from
one concentration to another. The accuracy of the calculation method was adequately verified on aqueous solutions of KCl. The equations made it possible to calculate the ATR absorbance spectrum of a "pure"
KCl-solvated water. The latter, which contains no ordinary water, enabled us to determine that solvated water forms clusters made up of a pair of ions with five molecules of water. The same results were
obtained with NaCl aqueous solutions.
UR - http://www.ingentaconnect.com/content/sas/sas/1999/00000053/00000012/art00016
M3 - doi:10.1366/0003702991946064
UR - http://dx.doi.org/10.1366/0003702991946064
ER -