December 2022

ORNL Report

Silicon Tetrafluoride Vapor Pressure Study

By:
Santos, Christina M; Hanson, Daniel E
Publication Date:
December 2022

Abstract

The vapor pressure of silicon tetrafluoride was evaluated using three different cryogenic cold baths and multiple pressure transducers. Through this experiment the known range of vapor pressure has been extended to a low temperature of 122K. A functional relationship for the VP has been developed for the range between 122K and 159.6K. This relationship was also used to estimate a VP value at 88K, which was below observable levels with a 0.1 torr gauge.


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