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A Further Study of the Absorption of Aqueous Solutions at 4.72μ

Authors :
C. J. Craven
E. S. Barr
Source :
The Journal of Chemical Physics. 7:8-10
Publication Year :
1939
Publisher :
AIP Publishing, 1939.

Abstract

By the use of a grating spectrometer, the infra‐red absorption spectra of aqueous solutions of five inorganic materials (KI, CuBr2, ZnBr2, CdCl2·2H2O, and NaOH) and six organic materials (acetone, CH3COONa, CH3COONH4, cane sugar, C6H5OH, and C2H5OH) were observed in the region of the water band at 4.72μ. The organic materials investigated caused a displacement of the position of maximum absorption to shorter wave‐lengths; the inorganic materials apparently caused a shift to longer wave‐lengths, but the actual effect on the water band may be masked by other absorption bands in the same region. The concentration‐shift relationship was investigated for some of the materials. Size of the solute molecule and the positive ion seemed to be of comparatively little importance.

Details

ISSN :
10897690 and 00219606
Volume :
7
Database :
OpenAIRE
Journal :
The Journal of Chemical Physics
Accession number :
edsair.doi...........a6f77594615368e81224c6e12c66c107
Full Text :
https://doi.org/10.1063/1.1750328