Journal article
Determination of isobaric thermal expansivity of organic compounds from 0.1 to 30 MPa at 30 degrees C with an isothermal pressure scanning microcalorimeter
This paper describes a simple high-pressure mercury-free microcalorimetric technique that enables the compression of a fluid from 0.1 to 30 MPa. Thermal expansivities of several compounds were calculated (n-hexane, cyclohexane, heptane, and toluene) with the pressure. scanning transitiometry method at 30 degreesC +/- 0.03 degreesC as a function of pressure and compared to the data found in the literature.
The results are quite close to the literature values (4.2% at the very worst), and the uncertainty has been evaluated at 2%. A Tait equation, fitted from experimental density data, was also used to test the results of this work. The difference is between -5.9% and 3.2%.
Language: | English |
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Year: | 2003 |
Pages: | 892-897 |
ISSN: | 15205134 and 00219568 |
Types: | Journal article |
DOI: | 10.1021/je025620p |
ORCIDs: | Andersen, Simon Ivar |