581. Phthalocyanines and related compounds. Part XX. Further investigations on tetrabenzporphin and allied substances
R. P. Linstead and F. T. Weiss, J. Chem. Soc., 1950, 2975 DOI: 10.1039/JR9500002975
Materials Literature
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Fractionnement par extraction du polythène
Abstract Les auteurs décrivent la technique d'extraction adoptée pour le fractionnement du polythène après avoir exposé les difficultés expérimentales d'une détermination des courbes de polydispersité de ce polymère d'après les méthodes classiques de précipitation. Les trois échantillons étudiés ont des poids molécula…
High polymer solutions. III.—the relation between intrinsic viscosity and molecular weight for polystyrene fractions in benzene, toluene, chloroform, ethyl benzene and methyl ethyl ketone
The first page of this article is displayed as the abstract.
The parahydrogen conversion on palladium-gold alloys
The first page of this article is displayed as the abstract.
Nodular cast iron Corrosion.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNodular cast iron Corrosion.Mars G. Fontana.Cite this: Ind. Eng. Chem. 1950, 42, 1, 67–68Publication Date (Print):January 1, 1950Publication History Published online6 October 2008Published inissue 1 January 1950https://pubs.acs.org/doi/10.1021/ie50481a007https://doi.org/10.1…
Sur la structure des solutions aqueuses de carboxymethylcellulose
Abstract Nous avons étudié deux carboxyméthylcelluloses ayant à peu près les mêmes caractéristiques moléculaires. Leur comportement rhéologique très différent s'explique par le fait qu'elles contiennent des proportions très différentes d'une fraction gonflant fortement dans l'eau mais insoluble. Cette fraction est par…
Effect of Adsorbed Polar Organic Compounds on Activity of Steel in Acid Solution
A series of aliphatic acids, amines, and esters, as well as one commercial corrosion inhibitor, were adsorbed from benzene solution onto SAE 1020 steel powder. These studies (reported elsewhere) showed that some portion of the sorbed material, depending on the compound, could not be desorbed by fresh solvent. The pres…
Calcium Halophosphate Phosphors
The energy distribution of the emission spectra of a number of calcium halophosphate phosphors has been determined on a recording spectroradiometer. These emission curves have been broken down into component bands, each of which has a Gaussian distribution of energy against wave number. An attempt is made to assign th…
Thermionic Emission from Oxide Cathodes: Retarding and Accelerating Fields
An experimental investigation of the thermionic emission from oxide-coated cathodes is presented in which the applied voltage range extends from the retarding potential region through zero field and up to an average accelerating field of 50,000 volts per cm. The retarding potential range yields information concerning…
The design of metallic delay dielectrics
A theory of metallic delay dielectrics, which is more accurate than existing ones and is based on an analogy with shunt-loaded transmission lines, has been developed for the simplest case, when the delay medium consists of an array of infinitely long conducting strips. Formulae have been obtained for the refractive in…
Melting and crystal structure. III.—low-melting acid sulphates
S. E. Rogers and A. R. Ubbelohde, Trans. Faraday Soc., 1950, 46, 1051 DOI: 10.1039/TF9504601051
Adsorbed and Reaction-Product Films on Metals
Abstract not Available.
The Fluorescence of Cyanine and Related Dyes in the Monomeric State1
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Fluorescence of Cyanine and Related Dyes in the Monomeric State1L. J. E. Hofer, Robert J. Grabenstetter, and Edwin O. WiigCite this: J. Am. Chem. Soc. 1950, 72, 1, 203–209Publication Date (Print):January 1, 1950Publication History Published online1 May 2002Published inis…
Mechanics of Elastic Performance of Textile Materials
Stress-analysis methods for textile materials are illustrated through a study of the forces pro duced when a continuous-filament yarn is stressed in tension. It is shown that the effects of yarn twist and yarn size on the tensile properties of singles continuous-filament yarns depend upon the stress distribution. Math…
High polymer solutions. Part I.—Vapour pressure of polystyrene solutions
The first page of this article is displayed as the abstract.
56. Heterogeneous catalysis. Part I. Theoretical basis
D. A. Dowden, J. Chem. Soc., 1950, 242 DOI: 10.1039/JR9500000242
The conductivities of potassium and lanthanum cobalticyandes and ferricyanides
J. C. James and C. B. Monk, Trans. Faraday Soc., 1950, 46, 1041 DOI: 10.1039/TF9504601041
Effect of Calcination on Natural Pozzolans
Calcination will improve the quality of some pozzolans, reduce the quality of others, and induce pozzolanic properties in some otherwise essentially non-reactive-substances. Natural pozzolans or natural materials in which pozzolanic properties can be induced by calcination at temperatures less than 2000 F. owe their a…
Volume changes in the stretching of vulcanized natural rubber
G. Gee, J. Stern and L. R. G. Treloar, Trans. Faraday Soc., 1950, 46, 1101 DOI: 10.1039/TF9504601101
The anodic behaviour of metals. Part VI.—Cobalt
S. E. S. El Wakkad and A. Hickling, Trans. Faraday Soc., 1950, 46, 820 DOI: 10.1039/TF9504600820