Molecular composition of organic impurities in extrapure sulfur


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Abstract

We have determined the molecular composition of organic impurities in extrapure sulfur obtained by the distillation purification of sulfur recovered from gaseous hydrocarbons. Using vacuum extraction, we obtained a concentrate of impurities highly volatile compared to the major component. Gas chromatography/ mass spectrometry analysis indicated the presence of impurities in the form of hydrocarbons with up to eight carbon atoms and their thio, oxy, and nitro derivatives. The detection of this group of impurities accounts for the distinctive features of the preparation of sulfur with low carbon and oxygen contents through ultrapurification of gas-derived sulfur.

About the authors

M. F. Churbanov

Devyatykh Institute of Chemistry of High-Purity Substances

Email: snopatin@ihps.nnov.ru
Russian Federation, ul. Tropinina 49, Nizhny Novgorod, 603950

G. E. Snopatin

Devyatykh Institute of Chemistry of High-Purity Substances

Author for correspondence.
Email: snopatin@ihps.nnov.ru
Russian Federation, ul. Tropinina 49, Nizhny Novgorod, 603950

A. Yu. Sozin

Devyatykh Institute of Chemistry of High-Purity Substances

Email: snopatin@ihps.nnov.ru
Russian Federation, ul. Tropinina 49, Nizhny Novgorod, 603950

I. V. Skripachev

Devyatykh Institute of Chemistry of High-Purity Substances

Email: snopatin@ihps.nnov.ru
Russian Federation, ul. Tropinina 49, Nizhny Novgorod, 603950

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