726. The stability constants of magnesium citrate complexes
S. S. Tate, A. K. Grzybowski and S. P. Datta, J. Chem. Soc., 1965, 3905 DOI: 10.1039/JR9650003905
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Contribution à l'étude de la constante diélectrique de la cuprite. I. Détermination de la constante diélectrique par des méthodes optiques
La constante diélectrique ε de Cu2O a été mesurée par une méthode optique et pour des nombres d'onde variant de 4 000 à 50 cm —1. La valeur de ε extrapolée donne : εstat = 7,5 ± 0,2. La courbe de dispersion peut-être représentée par une formule du type [FORMULE]faisant intervenir les deux fréquences actives dans l'inf…
Electron Microscopic Observation of the Sporangial Structure of a Strain of Actinoplanes
Lechevalier, Hubert (Rutgers, The State University, New Brunswick, N.J.), and Pauline E. Holbert. Electron microscopic observation of the sporangial structure of a strain of Actinoplanes. J. Bacteriol. 89:217-222. 1965.-Actinoplanes sp. P 128 has polarly flagellated sporangiospores. The numerous flagella, formed by th…
Decorative and Protective Finishes Produced on Aluminium
SummaryThe effects of anodizing aluminium of commercial purity (99%) in sulphuric acid at temperatures of -5° to +15°C and current densities of 20 to 80 A/ft2 for 20 to 80 minutes have been studied, with particular reference to appearance and resistance to abrasion. It has been shown that uniform self-coloured films r…
Étude cristallographique de nouveaux sulfures de terres rares et de métaux alcalins M = Li, K
On décrit de nouveaux sulfures de terres rares et de métaux alcalins (Li, K). Les composés TLiS₂ (T = Pr à Y) ont une structure cubique du type NaCl, les atomes T et Li étant désordonnés ; pour les terres rares de rayons plus petits (Ho, Er, Yb), les atomes T et Li s'ordonnent et il apparaît une déformation rhomboédri…
Diffraction des rayons X et des électrons par les molécules
L’aspect des phénomènes de diffraction des rayons X et des électrons par les molécules gazeuses est bien connu ; on sait en effet que les enregistrements photographiques de ces phénomènes permettent d’observer un ensemble d’anneaux concentriques, dont le centre coïncide avec la trace du faisceau direct.
Alternating and rotational power loss at 50 c/s in 3% silicon-iron sheets
Alternating and rotational power losses at 50c/s have been measured at various flux densities for hot-rolled and cold-rolled 3% silicon iron in 0.013 in laminations, using an improved thermocouple method. The aim of the work was twofold:(a) to provide design data for the engineer on the magnitude of the power loss in…
Steam and heat setting of nylon 6 fiber. II. Effects of heat setting of nylon 6 fiber on dyeability and fine structure
Drawn and undrawn nylon 6 fibers subjected to dry heat setting or steam setting were dyed with an acid dyestuff and a direct dyestuff. The dye uptake of these fibers was determined, and the rate of diffusion of a disperse dyestuff was evaluated by the method of Kramer. For the drawn nylon 6, the dye uptake and the dif…
Calculation of the magnetic field of rotating machines. Part 4: Approximate determination of the field and the losses associated with eddy currents in conducting surfaces
The paper discusses the relationship between the eddy currents flowing inside a conducting material and the magnetic field outside. The particular problem of a current sheet carrying a sinusoidally distributed current parallel to a conducting magnetic slab is examined in detail. It is shown that this mathematical mode…
955. Polyfluoroaryl organometallic compounds. Part III. Potassium pentafluorophenyltrifluoroborate
R. D. Chambers, T. Chivers and D. A. Pyke, J. Chem. Soc., 1965, 5144 DOI: 10.1039/JR9650005144
Growth of BaTiO3 Crystals from TiO2-Rich Melt
Single crystals of BaTiO 3 were grown from the TiO 2 -rich side of the BaO-TiO 2 system. They were chunky crystal with mainly {111} form. However, these chunky crystals are obtained only under a reduced atmospheric pressure. An oxygen defect seems to have an effect on the crystal morphology. Curie point of the present…
The Reaction of Hydrogen with Graphite at 1200° to 1650°C
The reaction was studied at 19 Torr pressure under static and flow conditions. Rates of reaction up to were measured at 1650°C and 19 Torr. The rates of reaction were nearly independent of flow and pressure. The kinetic data could be fitted to an Arrhenius‐type equation , where . Mass spectrometer studies of the react…
Heats of formation of the ?-brasses
R. L. Orr and B. B. Argent, Trans. Faraday Soc., 1965, 61, 2126 DOI: 10.1039/TF9656102126
Theoretical Refinement of the Pendant Drop Method for Measuring Surface Tensions
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTheoretical Refinement of the Pendant Drop Method for Measuring Surface TensionsDavid WinkelCite this: J. Phys. Chem. 1965, 69, 1, 348–350Publication Date (Print):January 1, 1965Publication History Published online1 May 2002Published inissue 1 January 1965https://pubs.acs.or…
Electrochemical Measurements on Zirconium and Zircaloy-2 at Elevated Temperatures
Rates of film growth in oxygenated dilute sulfuric acid have been measured on zirconium and Zircaloy‐2 at temperatures from 200° to 300°C using electrochemical methods. The resulting rate‐time plots were analyzed according to logarithmic and cubic kinetics. The kinetic constants obtained from these results, and those…
Plasticization and Plasticizer Processes
Plasticizatlon, in general, refers to a change in the thermal and mechanical properties of a given polymer which involves: (a) lowering of rigidity at room temperature; (b) lowering of temperature, at which substantial deformations can be effected with not too large forces; (c) increase of the elongation to break at r…
Noise in Photoemission Current
The statistics of photoemission as computed based on a Poisson distribution of incident photons, and a binomial distribution for the photocurrent, exactly obeys a Poisson distribution so that the fluctuation in the photocurrent is just that associated with the standard deviation of a Poisson distribution. This is comp…
Dissociation constant of the bisulphate ion at 25°C
A. K. Covington, J. V. Dobson and L. Wynne-Jones, Trans. Faraday Soc., 1965, 61, 2057 DOI: 10.1039/TF9656102057
Electrical characteristics of steel-cored aluminium conductors
The spiralling of the current in steel-cored aluminium conductors sets up an axial magnetic flux, and at power frequency this results in power loss from hysteresis in the steel core and from eddy currents. This loss increases with current and raises the a.c. resistance of the conductor; the internal inductance also in…
Repulsion of chloride ions by negatively charged clay surfaces. Part 2.—Monovalent cation montmorillonites
D. G. Edwards, A. M. Posner and J. P. Quirk, Trans. Faraday Soc., 1965, 61, 2816 DOI: 10.1039/TF9656102816