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Proceedings Paper

Fourier transform infrared spectroscopic spectroscopic studies of low temperature polar stratospheric cloud model surfaces
Author(s): Stefan Peil; Otto Schrems
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Paper Abstract

Thin films of different crystalline nitric acid hydrates have been prepared at low temperatures and studied by means of FTIR-spectroscopy. The hydrates of HNO3 have been prepared in various ways: (1) codeposition of HNO3 and H2O from the vapor phase onto the sample support in the temperature range between -110 degree(s)C and -90 degree(s)C yields two modifications of nitric acid trihydrate (NAT), (alpha) - and (beta) -NAT. (2) reactions between H2O (ice) and N2O5 (solid) or N2O5 (solid) and H2O (gas) in the same temperature range produce nitric acid in the hydrated forms (alpha) -NAT or (beta) -NAT.

Paper Details

Date Published: 31 January 1994
PDF: 2 pages
Proc. SPIE 2089, 9th International Conference on Fourier Transform Spectroscopy, (31 January 1994); doi: 10.1117/12.166747
Show Author Affiliations
Stefan Peil, Alfred Wegener Institute for Polar and Marine Research (Germany)
Otto Schrems, Alfred Wegener Institute for Polar and Marine Research (Germany)


Published in SPIE Proceedings Vol. 2089:
9th International Conference on Fourier Transform Spectroscopy
John E. Bertie; Hal Wieser, Editor(s)

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