scholarly journals The Dielectric Constant of Liquid Hydrogen Iodide

1915 ◽  
Vol 19 (4) ◽  
pp. 338-338 ◽  
Author(s):  
Herman Schlundt ◽  
Julius Underwood
Keyword(s):  
Dielectric Constant ◽  
Liquid Hydrogen ◽  
Hydrogen Iodide

Neutron-diffraction study of liquid hydrogen iodide

1992 ◽  
Vol 46 (8) ◽  
pp. 4709-4716 ◽  
Author(s):  
C. Andreani ◽  
M. Nardone ◽  
F. P. Ricci ◽  
A. K. Soper
Keyword(s):  
Neutron Diffraction ◽  
Diffraction Study ◽  
Neutron Diffraction Study ◽  
Liquid Hydrogen ◽  
Hydrogen Iodide

The reaction of trimethylamine in liquid hydrogen sulphide: an electrical conductivity study

1983 ◽  
Vol 61 (6) ◽  
pp. 1142-1145 ◽  
Author(s):  
James D. Halliday ◽  
Patrick E. Bindner
Keyword(s):  
Electrical Conductivity ◽  
Dielectric Constant ◽  
Hydrogen Sulphide ◽  
Liquid Hydrogen ◽  
Weak Electrolyte ◽  
Temperature Range ◽  
Conductance Data ◽  
Brønsted Base ◽  
Electrical Conductivity Study ◽  
Hydrogen Bonded

The electrical conductivity of trimethylamine solutions (2.26 × 10−4 to 2.89 × 10−1 mol L−1) in liquid hydrogen sulphide over the temperature range −72.5 °C to +25.0 °C has been measured. The data indicate that the trimethylamine behaves as a Brønsted base in liquid hydrogen sulphide [1] and is protonated to form trimethylammonium hydrogensulphide. The latter[Formula: see text]behaves as a normal weak electrolyte in a solvent of low to medium dielectric constant [Formula: see text]. The conductance data as a function of temperature also show that trimethylamine exists both as a hydrogen bonded complex with H2S and as an unassociated molecule in liquid H2S.

scholarly journals SOLVENT EFFECT ON IODIDE EXCHANGE

1951 ◽  
Vol 29 (9) ◽  
pp. 790-803 ◽  
Author(s):  
R. D. Heyding ◽  
C. A. Winkler
Keyword(s):  
Dielectric Constant ◽  
Dissociation Constants ◽  
Hydrogen Iodide ◽  
Low Dielectric Constant ◽  
Specific Rate ◽  
Iodide Ions ◽  
Low Dielectric ◽  
The Individual ◽  
High Dielectric ◽  
Triple Ion

The exchange of iodine between hydrogen iodide and n-butyl iodide has been studied in several organic solvents. In solvents of high dielectric constant (methanol, ethanol, n-butanol), exchange occurred by reaction of iodide ions with butyl iodide. In solvents of low dielectric constant (n-hexanol, n-dodecanol, acetic acid), it appeared that exchange also occurred between butyl iodide and the associated IHI− triple ion. Orders of magnitude of the individual specific rate constants have been calculated, using approximate values for the dissociation constants of hydrogen iodide. The rate constant – dielectric constant relation developed by Laidler and Eyring for ion – neutral molecule reactions appears to hold for exchange in homologous solvents, but does not seem to represent the effect of nonhomologous solvents. This discrepancy and the small differences observed in activation energies for the various exchanges may be due to solvation effects.

A SEM/TEM examination of a ceramic membrane

1986 ◽  
Vol 44 ◽  
pp. 682-683
Author(s):  
C.E. Voegele-Kliewer ◽  
A.D. McMaster ◽  
G.W. Dirks
Keyword(s):  
Electron Microscopy ◽  
Gas Separation ◽  
Ceramic Membrane ◽  
Hydrogen Iodide ◽  
Separation Processes ◽  
Corning Glass ◽  
Gas Transport Properties ◽  
Porous Microstructure ◽  
Microscopy Techniques ◽  
The Relationship

Materials other than polymers, e.g. ceramic silicates, are currently being investigated for gas separation processes. The permeation characteristics of one such material, Vycor (Corning Glass #1370), have been reported for the separation of hydrogen from hydrogen iodide. This paper will describe the electron microscopy techniques applied to reveal the porous microstructure of a Vycor membrane. The application of these techniques has led to an increased understanding in the relationship between the substructure and the gas transport properties of this material.

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