The Critical Temperature and Coexistence Curve for Bismuth Bromide

1965 ◽  
Vol 69 (6) ◽  
pp. 1989-1992 ◽  
Author(s):  
J. W. Johnson ◽  
D. Cubicciotti ◽  
W. J. Silva
Keyword(s):  
Critical Temperature ◽  
Coexistence Curve

Critical constants and density dependence of the Lorenz–Lorentz coefficient for germane

1978 ◽  
Vol 56 (9) ◽  
pp. 1140-1141 ◽  
Author(s):  
P. Palffy-Muhoray ◽  
D. Balzarini
Keyword(s):  
Critical Temperature ◽  
Density Dependence ◽  
Experimental Error ◽  
Critical Density ◽  
Coexistence Curve ◽  
Index Of Refraction ◽  
Density Range ◽  
Temperature Range ◽  
Critical Constants

The index of refraction at 6328 Å has been measured for germane in the density range 0.15 to 0.9 g/cm3. The temperature and density ranges over which measurements are made are near the coexistence curve. The coefficient in the Lorenz–Lorentz expression, [Formula: see text], is constant to within 0.5% within experimental error for the temperature range and density range studied. The coefficient is slightly higher near the critical density. The critical density is measured to be 0.503 g/cm3. The critical temperature is measured to be 38.92 °C.

A STUDY OF THE COEXISTENCE OF THE LIQUID AND GASEOUS STATES OF AGGREGATION IN THE CRITICAL TEMPERATURE REGION. ETHYLENE

1940 ◽  
Vol 18b (4) ◽  
pp. 118-121 ◽  
Author(s):  
S. N. Naldrett ◽  
O. Maass
Keyword(s):  
Critical Temperature ◽  
Temperature Region ◽  
Previous Investigation ◽  
Coexistence Curve

The coexistence curve of ethylene has been determined in a manner similar to that described in a previous investigation on ethane (9). It is found to lie entirely within the coexistence curve determined by P-V-T methods by other investigators (6). This is considered to be evidence for the formation of a dispersion of liquid and vapour before the critical temperature is reached. The term "critical dispersion temperature" is suggested for the temperature at the apex of the coexistence curve determined by the disappearance of the meniscus in a bomb shaken in the manner described in this investigation. The apex of the curve determined by P-V-T methods is the true critical temperature, beyond which liquid is not stable. The classical critical temperature, determined by the disappearance of the meniscus in a stationary bomb, is an indefinite point between these two.

On the NaCl-H2O coexistence curve near the critical temperature of H2O

1989 ◽  
Vol 156 (4) ◽  
pp. 415-417 ◽  
Author(s):  
A.H. Harvey ◽  
J.M.H.Levelt Sengers
Keyword(s):  
Critical Temperature ◽  
Coexistence Curve

ON THE LIQUID–VAPOR COEXISTENCE CURVE OF XENON IN THE REGION OF THE CRITICAL TEMPERATURE

1952 ◽  
Vol 30 (5) ◽  
pp. 422-437 ◽  
Author(s):  
M. A. Weinberger ◽  
W. G. Schneider
Keyword(s):  
Critical Temperature ◽  
Critical Region ◽  
Van Der Waals ◽  
Coexistence Curve ◽  
Packing Materials ◽  
Critical Data ◽  
Van Der Waals Theory ◽  
Liquid Vapor

The liquid–vapor coexistence curves of very pure xenon have been determined in bombs of vertical lengths 1.2 cm. and 19 cm. The longer bomb yielded a flat-topped coexistence curve, the shorter a more rounded curve. The classical van der Waals theory is capable of explaining a large portion of the flat top if effects of gravity are taken into account. Details of the theoretical variation of the width of the flat top with vertical bomb lengths are given. The critical data obtained for xenon are ρc = 1.105 gm./cc., Tc = 16.590 ±.001 °C. The danger of contamination of gases in the critical region on contact with gasket or packing materials is stressed.

The Critical Temperature and Coexistence Curve for Mercuric Chloride1

1966 ◽  
Vol 70 (4) ◽  
pp. 1169-1174 ◽  
Author(s):  
J. W. Johnson ◽  
W. J. Silva ◽  
Daniel Cubicciotti
Keyword(s):  
Critical Temperature ◽  
Coexistence Curve

Critical-Temperature and Coexistence-Curve Measurements in Thick Films

1976 ◽  
Vol 37 (22) ◽  
pp. 1471-1474 ◽  
Author(s):  
D. T. Jacobs ◽  
R. C. Mockler ◽  
W. J. O'Sullivan
Keyword(s):  
Critical Temperature ◽  
Thick Films ◽  
Coexistence Curve

Critical temperature and coexistence curve for aluminum bromide

1968 ◽  
Vol 72 (5) ◽  
pp. 1664-1668 ◽  
Author(s):  
J. W. Johnson ◽  
W. J. Silva ◽  
Daniel Cubicciotti
Keyword(s):  
Critical Temperature ◽  
Coexistence Curve ◽  
Aluminum Bromide

Electric conductivities of 1:1 electrolytes in liquid methanol along the liquid-vapor coexistence curve up to the critical temperature. II. KBr and KI solutions

2004 ◽  
Vol 121 (19) ◽  
pp. 9517-9525 ◽  
Author(s):  
Taka-aki Hoshina ◽  
Kensuke Tanaka ◽  
Noriaki Tsuchihashi ◽  
Kazuyasu Ibuki ◽  
Masakatsu Ueno
Keyword(s):  
Critical Temperature ◽  
Coexistence Curve ◽  
Liquid Vapor

A STUDY OF THE COEXISTENCE OF THE LIQUID AND GASEOUS STATES OF AGGREGATION IN THE CRITICAL TEMPERATURE REGION. ETHANE

1940 ◽  
Vol 18b (4) ◽  
pp. 103-117 ◽  
Author(s):  
S. G. Mason ◽  
S. N. Naldrett ◽  
O. Maass
Keyword(s):  
Critical Temperature ◽  
Temperature Region ◽  
Coexistence Curve ◽  
Absolute Temperature ◽  
Temperature Measurements ◽  
Careful Study ◽  
Physical Measurement ◽  
Relative Temperature ◽  
Density Measurements ◽  
Parabolic Shape

A careful study has been made of the position and nature of the meniscus and the distribution of opalescence in bombs containing ethane as the critical temperature is approached. Photographs of the phenomena have been made. The effect of shaking has been observed, and a type of shaking is described that is believed to hasten the attainment of equilibrium between the liquid and vapour phases. Using this type of stirring the coexistence curve of ethane has been determined. Relative temperature measurements are accurate to within ± 0.001 ° C.; absolute temperature measurements, to within ± 0.015 °C. Density measurements are believed accurate to within 1:3000. The limiting curve has the classical parabolic shape up to 32.23 °C., at which point the slope changes abruptly and the curve becomes flat along the density axis. The authors believe that at this temperature a dispersion of liquid and vapour occurs and that liquid still persists above this temperature. It is shown that the critical temperature as ordinarily determined in a stationary bomb cannot be accurately determined. The critical temperature can be determined precisely and without ambiguity when the bomb is shaken, and it is recommended that the value obtained in this way be used instead, as a physical measurement.

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