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Measurements of the(p,ρ,T) relation of methane and carbon dioxide in the temperature range 240 K to 520 K at pressures up to 30 MPa using a new accurate single-sinker densimeter

✍ Scribed by J Klimeck; R Kleinrahm; W Wagner

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
818 KB
Volume
33
Category
Article
ISSN
0021-9614

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✦ Synopsis

Comprehensive ( p, ρ, T ) measurements on pure methane (159 values) and pure carbon dioxide (118 values) have been carried out in the temperature range 240 K to 520 K at pressures up to 30 MPa. The measurements were performed by means of a single-sinker densimeter that is based on Archimedes' buoyancy principle. The total relative uncertainty of the measurements in the density ρ was estimated to be |(1.5 to 2)•10 -4

•ρ| for methane and |(2 to 3)•10 -4

•ρ| for carbon dioxide. The measurements are compared with previous results of other experimentalists and with values calculated from current equations of state. Moreover, previously unpublished results of ( p, ρ, T ) measurements on carbon dioxide (29 values) and methane (53 values

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