Author: Focke W.
Publisher: Springer Publishing Company
ISSN: 1388-6150
Source: Journal of Thermal Analysis and Calorimetry, Vol.74, Iss.1, 2003-10, pp. : 97-107
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Abstract
Previous investigators have used the Langmuir vaporisation relation to estimate the vapour pressures of low-volatility compounds from thermogravimetric data. However, this equation is strictly valid for evaporation into a vacuum only. For measurements conducted at finite pressures, molecular diffusion must be taken into account. A revised equation is proposed: d
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