The solubility of solidified toluene in liquid nitrogen |
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| Authors: | E. Szczepaniec-Cieciak K. Nagraba |
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| Affiliation: | 1. Cryogenic Department of the Institute of Chemistry, Jagiellonian University, ul. Krupnicza 41, 30-060 Kraków, Poland;2. Regional Laboratory of Physicochemical Analysis and Structure Research, Jagiellonian University, ul. Krupnicza 41, 30-060 Kraków, Poland |
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| Abstract: | A method of determining the solubility of some heavier hydrocarbons, which are slightly soluble in liquid nitrogen, is described. The investigations were carried out by a combination of the filtration method and an analytical technique for ultra-microtraces determination (enrichment and gas chromatography with mass spectrometry). The solubility of solidified toluene in liquid nitrogen was determined at 77.4 K. The experimental result, 4.45 × 10?8 mol fraction, was compared with the solubility calculated by the Preston-Prausnitz method. |
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