"The Purification of Elemental Sulfur" by Sherman Susman and S. Clark Rowland
 

The Purification of Elemental Sulfur

Document Type

Article

Publication Date

1-1-1992

Abstract

Sulfur has been purified by a dynamic pyrolysis procedure that takes into account the unique viscosity-temperature relationship of the liquid. An apparatus is described that incorporates gas-bubbling and rocking to overcome diffusion-limited kinetics. For the first time, a mechanism is proposed for the pyrolytic purification of sulfur based upon Carsul formation and the H2S ↔ H2S, equilibrium. Infrared methods are delineated for qualitative analysis and quantitative estimates of anion contaminants, including the omnipresent hydrocarbon impurities. Our purified sulfur has a total carbon, oxygen, and hydrogen impurity level of <10 μg/g. © 1992, Materials Research Society. All rights reserved.

Journal Title

Journal of Materials Research

Volume

7

Issue

6

First Page

1526

Last Page

1533

DOI

https://doi.org/10.1557/JMR.1992.1526

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