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Apparatus to measure the vapor pressure of slowly decomposing compounds from 1 Pa to 10^5 Pa

Published

Author(s)

Robert F. Berg

Abstract

This article describes an apparatus and method for measuring vapor pressures in the range from 1 Pa to 10^5 Pa. Its three distinctive elements are: (1) the static pressure measurements were made with only a small temperature difference between the vapor and the condensed phase, (2) the sample was degassed in situ, and (3) the temperature range extended up to 200 °C. The apparatus was designed to measure metal-organic precursors, which often are toxic, pyrophoric, or unstable. Vapor pressures are presented for naphthalene, ferrocene, and diethyl phthalate. Vapor pressure and the temperature-dependent decomposition rate constant are presented for tetrakisethylmethylaminohafnium (TEMAH).
Citation
Journal of Chemical and Engineering Data
Volume
60

Citation

Berg, R. (2015), Apparatus to measure the vapor pressure of slowly decomposing compounds from 1 Pa to 10^5 Pa, Journal of Chemical and Engineering Data, [online], https://doi.org/10.1021/acs.jced.5b00751 (Accessed May 23, 2022)
Created November 17, 2015, Updated November 10, 2018