A heated absorption cell for studying infrared absorption bands.
A 1-m length absorption cell has been designed for observation of ir absorption spectra of gases at high temperatures. The design allows use of windows of NaCl, KBr, etc., which have a tendency to cleave when subjected to temperature variations. The absorption spectrum of HC1(37)at temperatures in excess of 800 degrees C revealed more than twenty-five previously unobserved lines in the 1-0 band of this molecule. Some molecule constants of HCl(37)have been evaluated. Usefulness of the cell in work connected with other molecular problems has been indicated.
Webb
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Laboratory of Molecular Spectroscopy and Infrared Studies, Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA.
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