ISSN:
1572-8927
Schlagwort(e):
Calcium nitrite
;
magnesium nitrite
;
Raman
;
stability constants
;
ionic interactions
;
aqueous solutions
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
Notizen:
Abstract Raman and infrared spectroscopic studies have been performed on aqueous calcium and magnesium nitrite solutions over a wide range of solution compositions. Stability constants have been calculated from quantitative intensity measurement of bands in the v2 nitrite region arising from free and complexed nitrite. The measured values at 25°C. are: Ca(NO2)2, β1 = 0.18 at ionic strength 5.8; Mg(NO2)2, β1 = 0.061 at ionic strength 8.2. The populations of calcium nitrite complexes were found to increase considerably with increased ionic strenth, but complex formation was not temperature-sensitive in either case. Differences in relative intensities, between infrared and Raman spectra are discussed.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00644553
Permalink
