Mathematics – Logic
Scientific paper
Sep 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983natur.305..412r&link_type=abstract
Nature (ISSN 0028-0836), vol. 305, Sept. 29, 1983, p. 412, 413. Research supported by the Science and Engineering Research Counc
Mathematics
Logic
13
Absorption Spectroscopy, Cryogenic Fluids, Infrared Absorption, Liquid Phases, Solubility, Water, Fourier Transformation, Liquid Nitrogen, Liquid Oxygen, Methane, Molecular Absorption
Scientific paper
A high solubility for H2O in liquid nitrogen (LIN), LOX, and liquid methane (LIM) is demonstrated using Fourier transform IR spectroscopy. The trials were conducted with a vacuum insulated absorption cell made of brass. Ice particles were stirred into the LIN before transferrence to the cell, where the saturation was determined to depend on the mixing rate. The results were confirmed with the addition of D2O instead of H2O. It was also found that samples of LIN, LOX, and LIM exposed to the atmosphere displayed a significant uptake of water vapor. The LOX nu-1 and nu-2 lines were doublets with time and temperature varying intensities, which indicates that the doublets originate from dimer and monomer water. The results of the tests are useful for handling and storage of cryogenic liquids and biological specimens immersed in cryogenic liquids.
Rebiai R.
Rest A. J.
Scurlock R. G.
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