A vapour-pressure study of mixtures of bromine and chlorine

1968 ◽  
Vol 21 (2) ◽  
pp. 287 ◽  
Author(s):  
GH Chessman ◽  
DL Scott

Phase equilibria in the system bromine-chlorine have been examined by vapour-pressure measurements, with a primary view to obtaining information on the nature of the solid mixtures. The work has led to some modification of the earlier phase diagrams and to a general discussion on the thermodynamic properties of this binary system in which compound formation is known to occur.

2007 ◽  
Vol 28 (2) ◽  
pp. 158-166 ◽  
Author(s):  
Shihuai Zhou ◽  
Yi Wang ◽  
Frank G. Shi ◽  
Ferdinand Sommer ◽  
Long-Qing Chen ◽  
...  

2002 ◽  
Vol 755 ◽  
Author(s):  
Shihuai Zhou ◽  
Long-Qing Chen ◽  
Rebecca A. MacKay ◽  
Zi-Kui Li u

ABSTRACTThe phase equilibria and thermodynamic properties of the ternary Ni-Al-Ta system on Ni-rich side were analyzed. Thermodynamic descriptions of the liquid, γ-fcc, γ'-L12, and π-Ni6AlTa phases were obtained using the CALPHAD (CALculation of PHase Diagrams) technique. The thermodynamics of γ-fcc and γ'-L12 phases were modeled with a single Gibbs energy function taking into account the crystallographic relation between the two phases. The ternary interaction parameters of the liquid and fcc phases were also determined. The calculated phase diagrams of the ternary Ni-Al-Ta system show a good agreement with experimental data.


1958 ◽  
Vol 36 (7) ◽  
pp. 1064-1069 ◽  
Author(s):  
A. A. Lang ◽  
A. J. Sukava

Phase diagrams for the system KOH–K2CO3–H2O were determined for 25°, 10°, 0°, −10°, −20°, −40°, and −60°. The stable hydrates of potassium hydroxide were the di- and tetra-hydrates; those of potassium carbonate were the sesqui- and hexa-hydrates. No compound formation between KOH and K2CO3 was detected.


2002 ◽  
Vol 38 (3-4) ◽  
pp. 237-247 ◽  
Author(s):  
W. Gierlotka ◽  
K. Fitzner ◽  
M. Sukiennik

The partial vapour pressure of mercury over liquid Hg-Tl liquid solutions were determined in the temperature range from 450 to 700 K by direct vapour pressure measurements carried out with the quartz gauge. From the measured ln pHg vs. T relationships activities of mercury were determined. Using Redlich-Kister formulas logarithms of the activity coefficients were described with the following equations: From which all thermodynamic functions in the solutions can be derived.


1978 ◽  
Vol 56 (19) ◽  
pp. 2538-2545 ◽  
Author(s):  
Donald R. Sadoway ◽  
S. N. Flengas

The vapour pressures for the decomposition of the solid and liquid compounds AMCl6 where A = Na, K, Rb, or Cs, and M = Nb or Ta, were measured by a fused quartz Bourdon spiral pressure gauge. The hexachlorotantalates were found to be more stable thermally than the hexachloroniobates. Enthalpies of decomposition were calculated. The dissociation temperatures of each sequence of compounds increase with increasing size of the radius of the alkali-metal cation. Partial pressures of NbCl5 or TaCl5 vapour in equilibrium with solutions representing the binary Systems KCl–KNbCl6 and KCl–KTaCl6, respectively, are also reported.


2012 ◽  
Vol 549 ◽  
pp. 122-125
Author(s):  
Li Juan Yang ◽  
Dong Liang Shen ◽  
Shi Qiang Wang ◽  
Ya Fei Guo ◽  
Tian Long Deng

It is well known that the exploitation of brine resources of salt lakes is based on the relevant phase equilibrium and phase diagrams. In this paper, the progresses on the stable and metastable equilibria, thermodynamic properties and predictive solubilities of the brine system containing lithium and borate ions at present were summarized. The problems existed and the new trends in the future were also carried out.


ChemInform ◽  
1987 ◽  
Vol 18 (21) ◽  
Author(s):  
T. L. NGAI ◽  
D. MARSHALL ◽  
R. C. SHARMA ◽  
Y. A. CHANG

2001 ◽  
Vol 33 (1) ◽  
pp. 47-59 ◽  
Author(s):  
F.Javier Carmona ◽  
Venkat R. Bhethanabotla ◽  
Scott W. Campbell ◽  
J. Antonio González, ◽  
Isaías García de la Fuente ◽  
...  

1987 ◽  
Vol 118 (3) ◽  
pp. 277-300 ◽  
Author(s):  
T. Leo Ngai ◽  
D. Marshall ◽  
R. C. Sharma ◽  
Y. A. Chang

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