CCXVIII.—Styrylpyrylium salts. Part IX. Colour phenomena associated with benzonaphtha- and dinaphtha-spiropyrans
R. Dickinson and I. M. Heilbron, J. Chem. Soc., 1927, 1699 DOI: 10.1039/JR9270001699
Materials Literature
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Water-Cement Ration as a Basis of Concrete Quality
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The structure of, Be2SiO4
Abstract The investigation described in this paper was undertaken in the hope of tracing a relationship between the structure of phenacite and structures of other silicates of simple composition, such as olivine (Mg, Fe)2SiO4. Although the chemical composition is so simple, the structure proved to be unexpectedly comp…
IV.—Researches into the Characteristic Numbers of the Mathieu Equation
The characteristic numbers of the Mathieu equation are those values of a for which, when q is given, the equation admits of a solution of period π or 2π. The periodic solutions, or Mathieu functions, may be developed as a Fourier-series convergent for all values of q , multiplied by one or other of the factors
38—THE INTRACELLULAR STRUCTURE OF THE WOOL FIBRE
(1927). 38—THE INTRACELLULAR STRUCTURE OF THE WOOL FIBRE. Journal of the Textile Institute Transactions: Vol. 18, No. 10, pp. T431-T453.
CCCXVIII.—Complex metallic ammines. Part IX. The introduction of nitrophenol radicals into cobaltammine complexes. Distinctive behaviour of mononitrophenoxides
J. C. Duff and E. J. Bills, J. Chem. Soc., 1927, 2365 DOI: 10.1039/JR9270002365
CLXVI.—The dicarbazyls. Part II. 9 : 9′-Dicarbazyl and its halogen derivatives
J. McLintock and S. H. Tucker, J. Chem. Soc., 1927, 1214 DOI: 10.1039/JR9270001214
The Law of Corona and the Dielectric Strength of Air-IV The Mechanism of Corona Formation and Loss
The mechanisms of corona and corona loss have been studied with the cathode-ray oscillograph. High voltage power of the order of 0.1 watt can be measured with an accuracy of 1 per cent with this instrument. The measurements show that the loss follows the quadratic law above the visual critical voltage. On polished wir…
CXL.—The passivity of metals. Part I. The isolation of the protective film
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Zur Quantentheorie der Molekeln
Hier sol1 die Frage vom Standpunkte der Quantenmechsnik neu aufgenommen werdeal) Dabei stellt
Praseodym, Neodym und Wasserstoff
Abstract Bei der Einwirkung von Wasserstoff auf Praseodym entstehen feste Lösungen von derselben Art wie beim Cer und Lanthanmischemetall.
Zustandsdiagramme binärer Systeme, die als eine Komponente, AsBr3 enthalten
Abstract Es wurden die Zustandsdiagramme von sechs binären Systemen untersucht, die einerseits aus AsBr 3 , andererseits aus SbBr 3 , Anilinhydrochlorid, Resorcin, Phenol, α‐Naphthol und Äthylurethan zusammengesetzt sind. Es ist bewiesen worden: Das System AsBr 3 + SbBr 3 stellt eine ununterbrochene Reihe fester Lösun…
Schultenite, a new mineral, from South-West Africa
Baron A. De Schulten, a political refugee from Finland, worked during the latter part of his life in the chemical laboratories of the Sorbonne in Paris. There he prepared in a crystallized form number of minerals and compounds analogous to them. These were determined crystallographlcally and compared in isonlorphous s…
THE THEORY OF PICKLING OF SHEET IRON AND STEEL FOR ENAMELING PURPOSES 1
ABSTRACT The fundamental principal of efficient pickling is that efficient pickling does not depend on the solution of a large amount of metal but on the solution of a very thin layer of metal directly beneath the scale, rapidly and with copious evolution of hydrogen. The activity of an acid solution depends on the am…
Atomic Radii. II
X-ray data show that the two assumptions usually involved in previous calculations of atomic radii from crystal structures---namely (1) that the distance between adjacent atomic centers in crystals equals the sum of the two atomic radii, and (2) that the radii of atoms of the same element in different crystals are equ…
The Light Flux Distribution of a System of Interreflecting Surfaces
Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text Ziro Yamauti, "The Light Flux Distribution of a System of Interreflecting Surfaces," J. Opt. Soc. Am. 13, 561-571 (1926) Export Citation BibTex Endnote…
THERMAL DATA ON ORGANIC COMPOUNDS. IV. THE HEAT CAPACITIES, ENTROPIES AND FREE ENERGIES OF NORMAL PROPYL ALCOHOL, ETHYL ETHER AND DULCITOL
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTHERMAL DATA ON ORGANIC COMPOUNDS. IV. THE HEAT CAPACITIES, ENTROPIES AND FREE ENERGIES OF NORMAL PROPYL ALCOHOL, ETHYL ETHER AND DULCITOLGeorge S. Parks and Hugh M. HuffmanCite this: J. Am. Chem. Soc. 1926, 48, 11, 2788–2793Publication Date (Print):November 1, 1926Publicati…
Experiments on the production of large copper crystals
Abstract Five years ago one of the authors with Miss Elam devised a method of preparing “ single-crystal ” test-pieces of aluminium from bars of the polycrystalline metal by the method of critical straining and subsequent heat treatment. As a result of this work it has been possible to prepare a large number of single…
The formation of twinned metallic crystals
Abstract When strained, with or without subsequent heating, many metals produce twinned markings. It is customary to call the former mechanical twins and the latter annealing twins. According to Dana “ twin crystals are those in which one or more parts regularly arranged are in reverse position with reference to the o…
Über die Kristallstruktur der Telluride von Beryllium, Zink, Cadmium und Quecksilber
Article Über die Kristallstruktur der Telluride von Beryllium, Zink, Cadmium und Quecksilber was published on October 1, 1926 in the journal Zeitschrift für Physikalische Chemie (volume 124U, issue 1).