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(p, ρ, T) measurements of (ammonia +  water) in the temperature range 310 K to 400 K at pressures up to 17 MPa. II. Measurements of{ xNH3 +  (1  − x )H2O } at x = (1.0000, 0.8374, 0.6005, and 0.2973)

✍ Scribed by J. Kondo; Y. Yasukawa; M. Uematsu

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
430 KB
Volume
34
Category
Article
ISSN
0021-9614

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✦ Synopsis

Measurements of ( p, ρ, T ) for {x NH 3 + (1 -x)H 2 O} at x = (1.0000, 0.8374, 0.6005, and 0.2973) and at specified temperatures and pressures in the compressed liquid phase were carried out with a metal-bellows variable volumometer between T = 310 K and T = 400 K at pressures up to 17 MPa. The results cover the high-density region from ρ = 345 kg • m -3 for x = 1.0000 to ρ = 878 kg • m -3 for x = 0.2973. The experimental uncertainties at a 95 per cent confidence interval in temperature T , pressure p, density ρ, and mole fraction x were estimated to be less than ±11 mK, ±2.6 kPa, ±2.1 • 10 -3 . ρ, and ±1.8 • 10 -3

• x, respectively. A detailed comparison of the density values with literature data as well as with an equation of state proposed by Tillner-Roth and Friend is also reported.

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