834. Thermodynamics of ion association. Part V. Dissociation of the bisulphate ion
V. S. K. Nair and G. H. Nancollas, J. Chem. Soc., 1958, 4144 DOI: 10.1039/JR9580004144
Materials Literature
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EFFECTS OF RADIATION ON MATERIALS
<div class="section abstract"><div class="htmlview paragraph">IT is only since World War ll that extensive study has been made of the effects of high-energy radiation on materials. However, a lack of fundamental data still prevents the making of any generalizations or detailed calculations of the effects o…
Oxidation of Metals: Determination of Activation Energies.
A new method is proposed for the determination of energies of activation of oxidation of metals and alloys. Metals are oxidized under conditions of linearly increasing temperature, and the activation energy may be determined from one single oxidation run. In addition the method also gives the approximate temperature r…
High-Purity Crystalline Boron
Vapor phase reduction of boron trichloride with hydrogen on electrically heated filaments in flow systems was investigated as a potential method for the preparation of high‐purity boron. Experiments were conducted on laboratory and bench‐scale flow reactors. Conversion efficiency was a function of mole ratio of reacta…
Electron transfers among transition elements in magnesium oxide
All single crystals of MgO which have been available contain iron-group impurities in quantities easily detectable by e.s.r. absorption. For a given impurity, the fractions in the di- and tri-valent states depend in part upon the past heat treatment and upon the concentrations of the other impurities. Energetic radiat…
Reaction of Hydrogen with Uranium
Abstract not Available.
The solubilities of sparingly soluble salts in water. Part 5.—The solubility of barium sulphate at 25° C
D. R. Rosseinsky, Trans. Faraday Soc., 1958, 54, 116 DOI: 10.1039/TF9585400116
Polysoaps. II. The Preparation of Vinyl Soaps1
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolysoaps. II. The Preparation of Vinyl Soaps1HAROLD H. FREEDMAN, J. PHILIP MASON, and A. I. MEDALIACite this: J. Org. Chem. 1958, 23, 1, 76–82Publication Date (Print):January 1, 1958Publication History Published online1 May 2002Published inissue 1 January 1958https://pubs.a…
STUDY OF SODIUM VAPOR EJECTED INTO THE UPPER ATMOSPHERE
Two Aerobee rockets were employed to eject relatively large amounts of sodium vapor into the earth's atmosphere. One of the flights occurred during evening twilight and sodium was placed in the sunlit atmosphere from 75 to 110 km. Sodium D-line emission (λ 5890 A) was observed in the ejected trail above 90 km, and 589…
The interpretation of stress-relaxation measurements made on rubber during ageing
J. Scanlan and W. F. Watson, Trans. Faraday Soc., 1958, 54, 740 DOI: 10.1039/TF9585400740
The solubilities of some inorganic halides
M. F. C. Ladd and W. H. Lee, Trans. Faraday Soc., 1958, 54, 34 DOI: 10.1039/TF9585400034
54. The relative affinities of co-ordinating atoms for silver ion. Part I. Oxygen, sulphur, and selenium
S. Ahrland, J. Chatt, N. R. Davies and A. A. Williams, J. Chem. Soc., 1958, 264 DOI: 10.1039/JR9580000264
Foam stability: Part. II. Gas diffusion in foams
Abstract Pressure differences between foam bubbles of unequal size are the cause of gas transfer from small to larger bubbles. The rate at which the small bubbles decrease in size is calculated as a function of the radius of the bubbles, the surface tension of the liquid and the thickness and permeability of the liqui…
The magnetic properties of some d 3 ? , d 4 ? and d 5 ? configurations
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Phase Equilibria in the System ZnO-P[sub 2] O[sub 5]
Phase relationships in the system were determined in air in the range between and , using solid state and quenching methods. Three congruently melting compounds exist, , , and . The orthophosphate has a sluggish, reversible inversion at 942° and melts at 1060°±8°C. The pyrophosphate undergoes a rapid, reversible inver…
Intrinsic viscosities of cellulose derivatives
Abstract Intrinsic viscosities of cellulose acetates of degrees of substitution 2.86 and 3.00 and of cellulose trinitrate have been investigated as functions of temperature, solvent, and molecular weight. Large negative temperature coefficients ( ca. −0.6% per degree) of [η] appear to be characteristic of cellulosic c…
Chain configurations in crystals of simple linear polymers
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Preliminary Note on the Solubility of Oxygen in alpha-Zirconium.
An investigation was started on the solid solubility range of oxygen in alpha -zirconium. The solubility limit for samples heat-treated at 8O0 C was found to be about ZrO/sub 0.40. After annealing at 800 C, the sample ZrO/sub 0.30 gives x-ray powder photographs which show the oxygen atoms to be distributed at random i…
The control of flux waveforms in iron testing by the application of feedback amplifier techniques
By the use of a feedback amplifier technique, the voltage appearing across a search coil wound on a ferromagnetic core can be made to follow any desired driving waveform, and the inherent harmonic distortion effects arising from non-linear B/H characteristics are reduced by an amount approximating to the loop gain. Th…
The digital computer applied to the design of large power transformers
The paper describes an extensive investigation into the design of transformers with the aid of a high-speed digital computer. A general programme has been developed covering a range of transformers from 30 to 210 MVA, and has been tested for a wide range of designs within these limits. The subdivision of the process o…