THE SYSTEM KOH–K2CO3–H2O AT LOW TEMPERATURES: I. PHASE EQUILIBRIA

1958 ◽  
Vol 36 (7) ◽  
pp. 1064-1069 ◽  
Author(s):  
A. A. Lang ◽  
A. J. Sukava
Keyword(s):  
Phase Equilibria ◽  
Phase Diagrams ◽  
Potassium Carbonate ◽  
Low Temperatures ◽  
Potassium Hydroxide ◽  
Compound Formation

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.

A vapour-pressure study of mixtures of bromine and chlorine

1968 ◽  
Vol 21 (2) ◽  
pp. 287 ◽  
Author(s):  
GH Chessman ◽  
DL Scott
Keyword(s):  
Binary System ◽  
Thermodynamic Properties ◽  
Phase Equilibria ◽  
Phase Diagrams ◽  
Vapour Pressure ◽  
Pressure Measurements ◽  
Compound Formation

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.

Phase Equilibria and Phase Diagrams of the Mn2+, Mg2+, NH4+//SO42–H2O System at 298.15, 323.15, and 373.15 K

2020 ◽  
Vol 65 (6) ◽  
pp. 3091-3102 ◽  
Author(s):  
Min Zhang ◽  
Peng Wu ◽  
Yaoyao Li ◽  
Wenxuan Li ◽  
Huan Zhou
Keyword(s):  
Phase Equilibria ◽  
Phase Diagrams

scholarly journals PHASE DIAGRAMS OF THE SPIN-1 BLUME–EMERY–GRIFFITHS MODEL IN A RANDOM TRANSVERSE FIELD

2004 ◽  
Vol 18 (31n32) ◽  
pp. 4129-4142 ◽  
Author(s):  
H. EZ-ZAHRAOUY ◽  
H. MAHBOUB ◽  
A. BENYOUSSEF ◽  
M. J. OUAZZANI
Keyword(s):  
Field Theory ◽  
Phase Diagrams ◽  
Effective Field Theory ◽  
Low Temperatures ◽  
Transverse Field ◽  
Effective Field ◽  
Long Range Order ◽  
Special Value ◽  
Tricritical Behavior ◽  
Beg Model

The effect of the random quantum transverse field Ω on the tricritical behavior of the spin-1 Blume–Emery–Griffiths (BEG) model is studied using an effective field theory. It is found that the tricritical behavior depends on both the biquadratic interaction K, single-ion anisotropy Δ and the concentration p of the disorder of Ω. Indeed, there exists a special value p1 of the probability p below which the tricritical behavior disappears. In addition, at sufficiently low temperatures, the system exhibits long-range order accompanied by the tricritical behavior below a special value p2 of the probability p.

Phase Equilibria in a Liquid Metal of Fe-La-Ce-O System at 1600 °С

2020 ◽  
Vol 299 ◽  
pp. 468-474 ◽  
Author(s):  
Gennady G. Mikhailov ◽  
L.A. Makrovets ◽  
O.V. Samoilova
Keyword(s):  
Rare Earth ◽  
Liquid Metal ◽  
Phase Equilibria ◽  
Phase Diagrams ◽  
Liquid Iron ◽  
Rare Earth Metals ◽  
Liquid Oxygen ◽  
Oxide Systems ◽  
Calculation Technique ◽  
Steelmaking Technology

Thermodynamic modeling of phase equilibria in a liquid metal of Fe–La–Ce–O system at 1600 °С, using the technique of constructing the solubility surfaces for the components of a metal, was carried out. The calculation technique allowed assessing the depth of liquid iron de-oxidation at a complex use of lanthanum and cerium as deoxidizing agents. Also, diagrams of de-oxidants’ consumption for one ton of liquid oxygen-containing iron were calculated in the course of the work. Carrying out a calculation of the solubility surfaces for the components of a metal required simulation of phase diagrams of the following oxide systems: FeO–La2O3–Ce2O3, FeO–CeO2–La2O3, CeO2–La2O3–Ce2O3. The obtained results might be of interest for optimization of the use of rare-earth metals in steelmaking technology.

Phase Chemistry and Thermal Chemistry on the Calcium-Containing Brine Systems

2014 ◽  
Vol 1015 ◽  
pp. 405-408
Author(s):  
Bai Hui Bu ◽  
Fei Li ◽  
Ya Fei Guo ◽  
Shi Qiang Wang ◽  
Tian Long Deng
Keyword(s):  
Phase Equilibria ◽  
Phase Diagrams ◽  
Salt Lake ◽  
Comprehensive Utilization ◽  
Thermal Chemistry ◽  
The World ◽  
The Future ◽  
Phase Chemistry

It is well known that phase equilibria and phase diagrams can successfully guide the comprehensive utilization of the salt lake resources. The researches on phase chemistry and thermal chemistry of the calcium-containing brine system are essential to promote the development of brines. In this paper, the progresses on the phase chemistry and thermal chemistry of the calcium-containing brine system around the world from 2007 up to now were summarized. The problems existed and the new trends in the future were also carried out.

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