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(p,ρ,T) of liquidn-octane obtained with a spherical pycnometer at temperatures of 298.03 K and 313.15 K and pressures in the range 0.7 MPa to 32 MPa

✍ Scribed by A.R.H. Goodwin; C.H. Bradsell; L.S. Toczylkin

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
448 KB
Volume
28
Category
Article
ISSN
0021-9614

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✦ Synopsis

The density r of n-octane at temperatures of 298.03 K and 313.15 K and at pressures between 0.7 MPa and 32 MPa have been obtained with a pycnometer. The results, which we estimate have a best-case precision of 27•10 -5 •r, are compared with values reported in the literature where the differences are less than 24•10 -4 •r. At each temperature and pressure the cell volume Vc was obtained from the mass of mercury required to fill it at T=293.12 K and p=0.813 MPa and from the literature values of the mechanical properties of Inconel 625 from which the cell was formed. The volume was also obtained with a mercury-filled positive displacement pump at three temperatures between 298.15 K and 333.15 K and pressure below 30 MPa. The volumes so determined differed by less than 6•10 -5 •Vc from the calculated values.

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