Electrical Conductance of the LiCl–KCl Eutectic Melt Containing Halides and Alkali Titanium Fluorides as Solutes

1958 ◽  
Vol 62 (12) ◽  
pp. 1479-1482 ◽  
Author(s):  
George J. Janz ◽  
C. T. Brown ◽  
H. J. Gardner ◽  
C. Solomons
Keyword(s):  
Electrical Conductance ◽  
Eutectic Melt

On the nature of the electrical conductance of organic polyethynylpolyarene-base semiconductors

1969 ◽  
Vol 18 (4) ◽  
pp. 856-858
Author(s):  
V. G. Kostrovskii ◽  
E. D. Litman ◽  
T. G. Shishmakova ◽  
I. L. Kotlyarevskii ◽  
M. I. Bardamova
Keyword(s):  
Electrical Conductance

Electrical conductance for the detection of dental caries

2021 ◽  
Author(s):  
Richard Macey ◽  
Tanya Walsh ◽  
Philip Riley ◽  
Anne-Marie Glenny ◽  
Helen V Worthington ◽  
...  
Keyword(s):  
Dental Caries ◽  
Electrical Conductance

scholarly journals Behavior and properties of water in silicate melts under deep mantle conditions

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Bijaya B. Karki ◽  
Dipta B. Ghosh ◽  
Shun-ichiro Karato
Keyword(s):  
Electrical Conductivity ◽  
Molar Volume ◽  
Water Solution ◽  
Pure Water ◽  
Electrical Conductance ◽  
Water Structure ◽  
Bulk Water ◽  
Silicate Melts ◽  
Pressure Regime ◽  
Low Pressures

AbstractWater (H2O) as one of the most abundant fluids present in Earth plays crucial role in the generation and transport of magmas in the interior. Though hydrous silicate melts have been studied extensively, the experimental data are confined to relatively low pressures and the computational results are still rare. Moreover, these studies imply large differences in the way water influences the physical properties of silicate magmas, such as density and electrical conductivity. Here, we investigate the equation of state, speciation, and transport properties of water dissolved in Mg1−xFexSiO3 and Mg2(1−x)Fe2xSiO4 melts (for x = 0 and 0.25) as well as in its bulk (pure) fluid state over the entire mantle pressure regime at 2000–4000 K using first-principles molecular dynamics. The simulation results allow us to constrain the partial molar volume of the water component in melts along with the molar volume of pure water. The predicted volume of silicate melt + water solution is negative at low pressures and becomes almost zero above 15 GPa. Consequently, the hydrous component tends to lower the melt density to similar extent over much of the mantle pressure regime irrespective of composition. Our results also show that hydrogen diffuses fast in silicate melts and enhances the melt electrical conductivity in a way that differs from electrical conduction in the bulk water. The speciation of the water component varies considerably from the bulk water structure as well. Water is dissolved in melts mostly as hydroxyls at low pressure and as –O–H–O–, –O–H–O–H– and other extended species with increasing pressure. On the other hand, the pure water behaves as a molecular fluid below 15 GPa, gradually becoming a dissociated fluid with further compression. On the basis of modeled density and conductivity results, we suggest that partial melts containing a few percent of water may be gravitationally trapped both above and below the upper mantle-transition region. Moreover, such hydrous melts can give rise to detectable electrical conductance by means of electromagnetic sounding observations.

Cyclohexane oxidation: relationships of the process efficiency with electrical conductance, electronic and cyclic voltammetry spectra of the reaction mixture

2021 ◽  
Vol 132 (1) ◽  
pp. 123-137
Author(s):  
Alexander Pokutsa ◽  
Andriy Zaborovsky ◽  
Pawel Bloniarz ◽  
Tomasz Paczeŝniak ◽  
Dariya Maksym ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Electrical Conductance ◽  
Cyclohexane Oxidation ◽  
Process Efficiency

Thermoelectric Studies of Silver Nitrate in Sodium Nitrate – Potassium Nitrate Eutectic Melt

1971 ◽  
Vol 49 (12) ◽  
pp. 2044-2047
Author(s):  
L. G. Boxall ◽  
K. E. Johnson
Keyword(s):  
Seebeck Coefficient ◽  
Silver Nitrate ◽  
Mole Fraction ◽  
Sodium Nitrate ◽  
Nitrate Concentration ◽  
Potassium Nitrate ◽  
Silver Nitrate Concentration ◽  
Eutectic Melt

The Seebeck coefficient, εT, of the thermocell Ag(T)/AgNO3 in NaNO3 − KNO3/Ag (T + ΔT) was measured as a function of silver nitrate concentration and temperature. Extrapolation of the results to unit mole fraction, N, of AgNO3 gave the value εT0 = − 277.5 − 0.136T °C (µV deg−1).For several mixed melts of AgNO3 and an alkali nitrate the function [Formula: see text] was calculated and shown to be linear in N. P was extrapolated to finite values for the pure alkali nitrates.

Sign in / Sign up

Export Citation Format

Share Document