Equation of state, refractive index and polarizability of compressed water to 7 GPa and 673 K

2013 ◽  
Vol 138 (5) ◽  
pp. 054505 ◽  
Author(s):  
Carmen Sanchez-Valle ◽  
Davide Mantegazzi ◽  
Jay D. Bass ◽  
Eric Reusser
Keyword(s):  
Refractive Index ◽  
Equation Of State

An optical method for measuring PVT data, critical constants, virial coefficients, and molecular parameters of GeH4

1983 ◽  
Vol 61 (7) ◽  
pp. 1060-1063
Author(s):  
D. Balzarini ◽  
A. Rosenberg ◽  
P. Palffy-Muhoray
Keyword(s):  
Refractive Index ◽  
Equation Of State ◽  
Optical Method ◽  
Virial Coefficients ◽  
Virial Equation ◽  
Density Range ◽  
Lennard Jones ◽  
Pvt Data ◽  
Virial Equation Of State ◽  
Critical Constants

An optical method has been developed for measuring PVT data for a fluid. The method consists of measuring the refractive index as a function of density and temperature and, separately, as a function of pressure and temperature. The results are combined to yield PVT data. Germane has been studied. Isotherms have been measured in the temperature range 293 to 323 K and the density range 0.07 to 0.7 g cm−3. The data in the critical region are analyzed to obtain the critical constants Pc = 48.8 atm, ρc = 0.522 g cm−3, and Tc = 38.97 C ± 0.2. The data at lower densities are fitted to a virial equation of state to obtain the second and third coefficients. The values at 312.15 K are B = −2.37 cm3 g−1 and C = 1.99 cm6 g−2. The data are analyzed to yield the Lennard–Jones parameters ε/K = 230 ± 15 deg and σ = 4.6 ± 0.2 Å.

The velocity, refractive index, and equation of state of liquid ammonia at high temperatures and high pressures

2009 ◽  
Vol 131 (13) ◽  
pp. 134502 ◽  
Author(s):  
Fangfei Li ◽  
Min Li ◽  
Qiliang Cui ◽  
Tian Cui ◽  
Zhi He ◽  
...  
Keyword(s):  
Refractive Index ◽  
Equation Of State ◽  
High Temperatures ◽  
Liquid Ammonia ◽  
High Pressures

scholarly journals Refractive index of lithium fluoride to 900 gigapascal and implications for dynamic equation of state measurements

2019 ◽  
Vol 125 (17) ◽  
pp. 175901 ◽  
Author(s):  
L. E. Kirsch ◽  
S. J. Ali ◽  
D. E. Fratanduono ◽  
R. G. Kraus ◽  
D. G. Braun ◽  
...  
Keyword(s):  
Refractive Index ◽  
Equation Of State ◽  
Dynamic Equation ◽  
Lithium Fluoride
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