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Thermodynamic properties of {xCH3OH  + (1−x)H2O} withx =  (1.0000 and 0.4993) in the temperature range from 320 K to 420 K at pressures up to 200 MPa

✍ Scribed by O. Osada; M. Sato; M. Uematsu

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
175 KB
Volume
31
Category
Article
ISSN
0021-9614

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✦ Synopsis

Measurements of ( p, ρ, T ) for {xCH 3 OH + (1x)H 2 O} with x = (1.0000 and 0.4993) at specified temperatures and pressures in the compressed liquid phase were carried out with a metal-bellows variable volumometer along six isotherms between T = 320 K and T = 420 K at pressures from the bubble point pressure to p = 200 MPa. The results cover the high-density region from ρ = 884 kg•m -3 to ρ = 651 kg•m -3 for x = 1.0000, and from ρ = 948 kg•m -3 to ρ = 755 kg•m -3 for x = 0.4993. The experimental uncertainties in temperature T , pressure p, density ρ, and mole fraction x were estimated to be less than ±3 mK, ±1.0•10 -3 • p, ±1.0•10 -3 •ρ, and ±1.0•10 -3 • x, respectively. Measurements of vapour pressure, bubble point pressure, and saturated liquid density at temperatures from 320 K to 420 K are also reported. On the basis of the present results, the excess molar volumes for (0.4993CH 3 OH + 0.5007H 2 O) were calculated and are tabulated as a function of temperature and pressure.

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