Thermodynamic Characteristics of the Sorption and Separation of Pyridine Derivatives Using Pyrazinoporphirazine Based Sorbents

The retardation factors and specific retention volumes of pyridine and its derivatives are determined via inverse gas chromatography in the 130–170°C range of temperatures on packed columns with silicone-based XE-60 stationary phases and additives of camphor-substituted tetrapyrazinoporphyrazine or...

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Bibliographic Details
Published in:Russian Journal of Physical Chemistry A 2018-10, Vol.92 (10), p.2025-2031
Main Authors: Kuvshinov, G. V., Koifman, O. I.
Format: Article
Language:English
Subjects:
Additives
Camphor
Chemistry
Chemistry and Materials Science
Coordination compounds
Copper
Copper compounds
Derivatives
Gas chromatography
Inverse gas chromatography
Isomers
Mathematical analysis
Packed columns
Physical Chemistry
Physical Chemistry of Surface Phenomena
Separation
Sorbates
Sorbents
Sorption
Substitutes
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Summary:The retardation factors and specific retention volumes of pyridine and its derivatives are determined via inverse gas chromatography in the 130–170°C range of temperatures on packed columns with silicone-based XE-60 stationary phases and additives of camphor-substituted tetrapyrazinoporphyrazine or its copper complex. The separation factors of sorbates with close boiling temperatures are calculated, and the high separation ability of the binary XE-60 silicone–pyrazinoporphyrazine Cu(II) complex phase is established. The thermodynamic characteristics of the sorption of pyridine and methyl- and dimethylpyridine isomers from the gas phase are determined along with the macroheterocyclic compound–sorbate complexation constants and thermodynamic parameters. The high selectivity of a sorbent based on XE-60 silicone and the copper complex of camphor-substituted tetrapyrazinoporphyrazine is substantiated thermodynamically.
ISSN:0036-0244
1531-863X
DOI:10.1134/S0036024418100163