Osmotic and activity coefficients of sodium sulphate in water from 150 to 250 °C

1982 ◽  
Vol 60 (13) ◽  
pp. 1754-1758 ◽  
Author(s):  
Om N. Bhatnagar ◽  
A. N. Campbell
Keyword(s):  
Aqueous Solution ◽  
High Pressure ◽  
Activity Coefficients ◽  
Pressure Measurement ◽  
Vapour Pressure ◽  
Pressure Transducer ◽  
Solute Concentration ◽  
Sodium Sulphate ◽  
Thermodynamic Quantities ◽  
High Pressure Cell

Osmotic and activity coefficients of sodium sulphate in aqueous solution have been determined at temperatures up to 250 °C, at solute concentration from 0.3 m to saturation, by measurements of vapour pressure using a newly designed high pressure cell. A precision pressure transducer is used in this cell for pressure measurement. Certain thermodynamic quantities have been calculated from the activity coefficients.

Osmotic and activity coefficients of lithium chloride in water from 50 to 150 °C

1979 ◽  
Vol 57 (19) ◽  
pp. 2542-2545 ◽  
Author(s):  
Alan N. Campbell ◽  
Om N. Bhatnagar
Keyword(s):  
Aqueous Solution ◽  
Activity Coefficient ◽  
Experimental Determination ◽  
Activity Coefficients ◽  
Lithium Chloride ◽  
Vapour Pressure ◽  
Differential Manometer ◽  
Solvent Water

The activity coefficients of lithium chloride in aqueous solution at temperatures of 50, 75, 100, 125, and 150 °C and concentrations varying from 0.5 to 3 m have been determined. The method used was the application of the Gibbs–Duhem theorem, i.e., the activity of the solvent water was the quantity actually determined. The experimental determination was that of the vapour pressure of the solution using a differential manometer. At all temperatures the activity coefficient passes through a minimum and then increases progressively.

Thermodynamic quantities for the interaction of SO 4 2? with H+ and Na+ in aqueous solution from 150 to 320�C

1988 ◽  
Vol 17 (9) ◽  
pp. 841-863 ◽  
Author(s):  
J. L. Oscarson ◽  
R. M. Izatt ◽  
P. R. Brown ◽  
Z. Pawlak ◽  
S. E. Gillespie ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Thermodynamic Quantities

Vapour pressure measurement of metal organic precursors used for MOVPE

2006 ◽  
Vol 38 (3) ◽  
pp. 312-322 ◽  
Author(s):  
M. Fulem ◽  
K. Růžička ◽  
V. Růžička ◽  
T. Šimeček ◽  
E. Hulicius ◽  
...  
Keyword(s):  
Pressure Measurement ◽  
Vapour Pressure ◽  
Vapour Pressure Measurement ◽  
Metal Organic ◽  
Organic Precursors

Identification of the L-Band in InxGa1−xP/In)0.5Al0.5P Multiple Quantum Wells from High Pressure Measurement

1996 ◽  
Vol 198 (1) ◽  
pp. 337-341 ◽  
Author(s):  
D. Patel ◽  
K. Interholzinger ◽  
P. Thiagarajan ◽  
G. Y. Robinson ◽  
C. S. Menoni
Keyword(s):  
High Pressure ◽  
Quantum Wells ◽  
Pressure Measurement ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
L Band

scholarly journals Neutron attenuation corrections for the Paris–Edinburgh high-pressure cell

1996 ◽  
Vol 52 (a1) ◽  
pp. C546-C546 ◽  
Author(s):  
W. G. Marshall ◽  
R. J. Nelmes ◽  
J. S. Loveday ◽  
J. M. Besson ◽  
S. Klotz ◽  
...  
Keyword(s):  
High Pressure ◽  
High Pressure Cell ◽  
Pressure Cell ◽  
Neutron Attenuation

scholarly journals Recent Progress in Multi-Extreme Condition by Miniature High-Pressure Cell

2012 ◽  
Vol 22 (3) ◽  
pp. 206-213 ◽  
Author(s):  
Kazuyuki MATSUBAYASHI ◽  
Akihiko HISADA ◽  
Tatsuya KAWAE ◽  
Yoshiya UWATOKO
Keyword(s):  
High Pressure ◽  
Recent Progress ◽  
Extreme Condition ◽  
High Pressure Cell ◽  
Pressure Cell

STUDY ON NEW ICE SLURRY GENERATOR USING NaCl AQUEOUS SOLUTION AT LOW CONCENTRATION

2013 ◽  
Vol 21 (01) ◽  
pp. 1350004 ◽  
Author(s):  
KOJI FUMOTO ◽  
TSUYOSHI KAWANAMI ◽  
TAKAO INAMURA
Keyword(s):  
Aqueous Solution ◽  
High Pressure ◽  
Test Section ◽  
Freezing Point ◽  
New Method ◽  
Heat Of Fusion ◽  
Test Fluid ◽  
Ice Slurry ◽  
Slurry Ice ◽  
Experimental Apparatus

A cold thermal energy storage system has been developed for HVAC. There are many ice-based cooling systems operating around the world. Ice slurry, which is a mixture of fine ice crystals and liquid water, is utilized in ice storage systems owing to its good flowability and large latent heat of fusion. For slurry ice production techniques, there are presently a number of commercially available ice slurry generators (e.g., Supercooled slurry ice generator, Scraper type generator, and Vacuum type generator, etc.). In the present study, a new method was developed to generate ice slurry without the deposition of an ice layer on a cooled surface. The basic components of the experimental apparatus is a cooling brine circulating loop, a high pressure pump, a valve, an aqueous solution flow loop containing the test section, which is made of transparent acrylic, and the associated instrumentation. This new method is based on freezing-point depression of the aqueous solution, which is maintained under high-pressure conditions. To control the timing for solidification and to generate ice slurry, we investigated the relationships among the pressure and temperature of the aqueous solution. The freezing phenomenon of the aqueous solution in the test section was observed in detail. As a result, we developed a new ice slurry generator based on the new method that controls the pressure and temperature of the aqueous solution. Experimental results showed that the characteristics of the ice slurry generation were closely related to the pressure and initial stage temperature of the test fluid. Finally, the optimum operation condition of the ice slurry generator based on visualization experiment was discussed.

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