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On the Melting Curve of Sulfur Hexafluoride

Published

Author(s)

Allan H. Harvey

Abstract

A previous correlation for the melting curve of sulfur hexafluoride (SF6) is inconsistent with the thermodynamic slope at the triple point derived from the Clapeyron nist-equation. It is shown that this is probably due to the previous authors combining an accurate measurement of the triple point with melting-curve data that were distorted by impurities. A new nist-equation is proposed that is consistent with the Clapeyron slope.
Citation
J. Phys. & Chem. Ref. Data (JPCRD) -
Volume
46
Issue
4

Keywords

freezing, melting, metrology, SF6, sulfur hexafluoride, thermodynamics, triple point
Created November 9, 2017, Updated November 10, 2018