A New Infra-red Absorption Band of Liquid Water at 2.52μ
- 1 March 1939
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 55 (5), 470-472
- https://doi.org/10.1103/physrev.55.470
Abstract
The absorption of liquid water in the spectral region from 2.00 to 2.65μ was measured by means of a thermopile and glass prism spectrometer with a slit width of 100 angstroms in a search for a weak absorption band predicted by Ellis as a combination band occurring in liquid water but not in water vapor. A band was found with a peak at 2.52μ and with a maximum absorption coefficient of about 34. This is the fifth absorption band to be found in the spectrum of liquid water that has no counterpart in the spectrum of water vapor.Keywords
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