The thermal depolymerization of polystyrene. Part 1.—The reaction mechanism
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Materials Literature
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Microwave Resonance Relations in Anisotropic Single-Crystal Ferrites
The ferromagnetic resonance relations in magnetically anisotropic single-crystal ferrites have been re-examined. Detailed analyses are presented for spherical ferrite specimens possessing first order anisotropy. Generalized nomograms are presented which relate the microwave resonance frequency to the static magnetic f…
Anodic Oxidation of Aluminum, Chromium, Hafnium, Niobium, Tantalum, Titanium, Vanadium, and Zirconium at Very Low Current Densities
Some aspects of the mode of formation of anodic oxidation films in the potential region below oxygen evolution were examined for a number of metals under as nearly constant experimental conditions as possible. The metals selected were Al, Ti, Hf, V, Nb, Ta, and Cr. Results for Zr were reported in earlier publications.…
Preparation of Phthalic Acid Esters of Cellulose
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation of Phthalic Acid Esters of CelluloseC. J. Maim, J. W. Mench, Brazelton. Fulkerson, and G. D. HiattCite this: Ind. Eng. Chem. 1957, 49, 1, 84–88Publication Date (Print):January 1, 1957Publication History Published online1 May 2002Published inissue 1 January 1957ht…
Solution behavior of chemically synthesized polyglucoses
Abstract The solution behavior of polyglucoses prepared by the acid catalyzed polycondensation of Pacsu and Mora is discussed. According to this method glucose enters the polycondensation through the hemiacetal hydroxyl joining any of the other hydroxyls of a second glucose unit. Branching occurs up to the functionali…
213. Experiments on the synthesis of the pyrethrins. Part XII. cycloHexenone analogues of cinerone and pyrethrone
A. J. B. Edgar, S. H. Harper and M. A. Kazi, J. Chem. Soc., 1957, 1083 DOI: 10.1039/JR9570001083
Uranium-Aluminum Alloy Dissolution
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTUranium-Aluminum Alloy DissolutionR. G. Wymer and R. E. BlancoCite this: Ind. Eng. Chem. 1957, 49, 1, 59–61Publication Date (Print):January 1, 1957Publication History Published online1 May 2002Published inissue 1 January 1957https://pubs.acs.org/doi/10.1021/ie50565a026https:…
Valence in the Boron Hydrides
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTValence in the Boron HydridesWilliam N. LipscombCite this: J. Phys. Chem. 1957, 61, 1, 23–27Publication Date (Print):January 1, 1957Publication History Published online1 May 2002Published inissue 1 January 1957https://pubs.acs.org/doi/10.1021/j150547a005https://doi.org/10.10…
Dependence of the Ratio of Piezoelectric Coefficients on Density and Composition of Barium Titanate Ceramics
The ratio of piezoelectric coefficients $\ensuremath{-}\frac{{d}_{33}}{{d}_{31}}$ was found to decrease from about 2.5 for polarized barium titanate ceramic of high porosity to 2.2 for porosity near zero. The ratio increases up to 2.9 for ceramic with 2% porosity containing 12 weight% calcium titanate. For single crys…
The Systems CaF[sub 2]-LiF and CaF[sub 2]-LiF-MgF[sub 2]
Temperature‐composition relationships have been measured in the and the systems in the areas of liquidus temperatures below 1000°C. A binary eutectic composition of and was observed to melt at 769°C. A ternary eutectic composition of , , and was observed to melt at 672°C.
158. Infrared absorption bands associated with the NH group. Part I. Some secondary aromatic amines
D. Hadži and M. Škrbljak, J. Chem. Soc., 1957, 843 DOI: 10.1039/JR9570000843
519. Four higher annellated pyrenes with acene character
B. Boggiano and E. Clar, J. Chem. Soc., 1957, 2681 DOI: 10.1039/JR9570002681
905. The alkaline degradation of polysaccharides. Part I. Soluble products of the action of sodium hydroxide on cellulose
G. N. Richards and H. H. Sephton, J. Chem. Soc., 1957, 4492 DOI: 10.1039/JR9570004492
The Corrosion of Single Crystals and Recrystallized Single Crystals of Iron and Steel in Citric Acid
Corrosion studies, largely in 0.2M citric acid at 20°C and the boiling point, were made on polycrystalline disks and monocrystalline spheres and disks of Armco iron and type L steel. Preliminary experiments indicated that the (100) face corroded at the slowest rate and the minor faces, of which the (321) is an example…
The formic acid decomposition on palladium-gold alloys
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906. The alkaline degradation of polysaccharides. Part II. The alkali-stable residue from the action of sodium hydroxide on cellulose
G. Machell and G. N. Richards, J. Chem. Soc., 1957, 4500 DOI: 10.1039/JR9570004500
138. Conjugated macrocycles. Part XXVIII. Adducts from di-iminoisoindoline and arylene-m-diamines, and a new type of crossconjugated macrocycle with three-quarters of the chromophore of phthalocyanine
J. A. Elvidge and J. H. Golden, J. Chem. Soc., 1957, 700 DOI: 10.1039/JR9570000700
797. The structure of pyrrole trimer
H. A. Potts and G. F. Smith, J. Chem. Soc., 1957, 4018 DOI: 10.1039/JR9570004018
Galvanic Corrosion
Current flow, weight loss, and polarization measurements have been carried out on the aluminum‐mild steel and zinc‐mild steel couples in normal NaCl solution at 25°C. Under a wide variety of experimental conditions both aluminum and zinc are anodic to mild steel and completely protect it against corrosion. In both gal…
Potassium Release Characteristics of Several Soils from Ohio and New York
Abstract Seventeen Ohio surface soils, 25 New York surface soils, and 21 New York subsoils were investigated. Potassium release characteristics were determined by continuous cropping and by four different chemical methods. A continuous leaching method employing the use of 0.01 N HCl gave the highest correlations with…