The sponges of Woods Hole and adjacent waters
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Problems of crystal growth in building materials
F. M. Lea and R. W. Nurse, Discuss. Faraday Soc., 1949, 5, 345 DOI: 10.1039/DF9490500345
578. The polymerisation of methacrylamide and the alkaline hydrolysis of the polymer
C. L. Arcus, J. Chem. Soc., 1949, 2732 DOI: 10.1039/JR9490002732
Cellulose Ester Solutions
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCellulose Ester SolutionsCharles R. Fordyce and David R. SimonsenCite this: Ind. Eng. Chem. 1949, 41, 1, 104–111Publication Date (Print):January 1, 1949Publication History Published online1 May 2002Published inissue 1 January 1949https://pubs.acs.org/doi/10.1021/ie50469a027h…
Growing single crystals from solution
The first page of this article is displayed as the abstract.
Observation of the Ferro-Electric Barkhausen Effect in Barium Titanate
Conductivity pulses were observed immediately after a single crystal of barium titanate was placed in an electric field, but died out in a few seconds. Several experiments were designed to test the hypothesis that these pulses were caused by the Barkhausen effect. From the experiments, the volume of a Barkhausen regio…
Studies on the Schardinger Dextrins. II. Preparation and Properties of Amyloheptaose
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStudies on the Schardinger Dextrins. II. Preparation and Properties of AmyloheptaoseDexter. French, Melvin L. Levine, and J. H. PazurCite this: J. Am. Chem. Soc. 1949, 71, 1, 356–358Publication Date (Print):January 1, 1949Publication History Published online1 May 2002Publish…
Acid-soluble pigments of molluscan shells. 4. Identification of shell porphyrins with particular reference to conchoporphyrin
Research Article| January 01 1949 Acid-soluble pigments of molluscan shells. 4. Identification of shell porphyrins with particular reference to conchoporphyrin R. E. H. Nicholas; R. E. H. Nicholas 1Department of Chemical Pathology, University College Hospital Medical School, and Department of Physiology, London Hospit…
S 8. The kinetics of the thermal decomposition of magnesium hydroxide
The first page of this article is displayed as the abstract.
Reactions of Zirconium, Titanium, Columbium, and Tantalum with the Gases, Oxygen, Nitrogen, and Hydrogen at Elevated Temperatures
A systematic study is made of the kinetics of the reactions including a study of the time, temperature, and pressure variables. The reaction rates are studied by the vacuum microbalance method and the surface structures by the electron diffraction method. The data are correlated with fundamental diffusion and solution…
The influence of foreign ions on crystal growth from solution. 1. The stabilization of the supersaturation of calcium carbonate solutions by anions possessing O-P-O-P-O chains
B. Raistrick, Discuss. Faraday Soc., 1949, 5, 234 DOI: 10.1039/DF9490500234
Magnetostriction and Order-Disorder
An experimental and theoretical study of the relationship between saturation magnetostriction and the order-disorder transformation in an iron-cobalt alloy has been carried out. For the experimental work Fe-Co alloys in the neighborhood of the 50 atomic percent composition containing 0.75 percent Cr were employed. Mea…
Preparation of Hyper-Pure Silicon
The preparation of hyper‐pure silicon by reduction of silicon tetrachloride with zinc vapor is described. This reaction, which takes place at 950 C, was carried out in apparatus constructed of fused silica. The silicon prepared by this process was essentially spectrographically free of metallic impurities, and had ext…
A Calculation of the Changes in the Conductivity of Metals Produced by Cold-Work
The increase in the electrical resistance of severely cold-worked metals has been calculated by assuming that the important change which occurs during cold-work is the introduction of large numbers of Taylor dislocations. The results obtained are as follows: The calculated increase in the electrical resistance of poly…
THE PLASTIC YIELDING OF NOTCHED BARS UNDER TENSION
The state of stress in the core of a notched bar is analysed at the moment when pronounced plastic yielding begins. The theory is two-dimensional and an ideal plastic-rigid material is assumed. Following a general analysis of the problem, the magnitude of the constraint factor is calculated for a deep notch with a sem…
619. The thermal degradation of ethylene polymers
W. G. Oakes and R. B. Richards, J. Chem. Soc., 1949, 2929 DOI: 10.1039/JR9490002929
A Simple Domain Structure in an Iron Crystal Showing a Direct Correlation with the Magnetization
A hollow rectangle cut from a single crystal of 3.8 percent silicon iron has been studied with the aid of powder patterns and flux measurements. The edges and surfaces were all cut accurately parallel to 100>, the directions of easy magnetization. The domain pattern consists of 8 domains, four forming an inner rect…
689. A violet water-soluble copper cyanide
A. Glasner and K. R. S. Asher, J. Chem. Soc., 1949, 3296 DOI: 10.1039/JR9490003296
The Effect of Oxygen on Inhibition of Corrosion by Nitrite
A study has been made of the effects of the concentration of dissolved oxygen and temperature on the rate of breakdown of sodium nitrite in the presence of steel, and on the rate of corrosion of the steel. It was found that, at any given temperature, an increase in concentration of oxygen decreased the amount of nitri…
Mechanisms of hydrogen catalysis
The first page of this article is displayed as the abstract.