322. Solutions of metal soaps in organic solvents. Part III. The aggregation of metal soaps in toluene, isobutyl alcohol, and pyridine
S. M. Nelson and R. C. Pink, J. Chem. Soc., 1952, 1744 DOI: 10.1039/JR9520001744
Materials Literature
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422. Fused carbon rings. Part XXI. Dibenzopentalene
C. T. Blood and R. P. Linstead, J. Chem. Soc., 1952, 2263 DOI: 10.1039/JR9520002263
The aggregation of oil particles in emulsions
E. G. Cockbain, Trans. Faraday Soc., 1952, 48, 185 DOI: 10.1039/TF9524800185
STUDIES ON MELANIN
predominance of female, it appears, perhaps depends on the cosmetic complaint.Type: Among 106 cases 45 were of mild orbital type, 22 were of mild zygomatic type, 19 were of moderate type, 10 were of intensive type (Plate VIII, Figure 30) 4 were of bilateral type, 3 were of each abortive and perinostril type, in brief…
Starch Granule Swelling in Water Vapor Sorption
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStarch Granule Swelling in Water Vapor SorptionN. N. Hellman, T. F. Boesch, and E. H. MelvinCite this: J. Am. Chem. Soc. 1952, 74, 2, 348–350Publication Date (Print):January 1, 1952Publication History Published online1 May 2002Published inissue 1 January 1952https://pubs.acs…
Crystal Structure of Heavy Metal Orthovanadates
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystal Structure of Heavy Metal OrthovanadatesW. O. Milligan and L. W. VernonCite this: J. Phys. Chem. 1952, 56, 1, 145–147Publication Date (Print):January 1, 1952Publication History Published online1 May 2002Published inissue 1 January 1952https://pubs.acs.org/doi/10.1021/…
The Interlayer Binding in Graphite
The repulsive energy between layers of the graphite crystal has been calculated as an interaction of LCAO molecular orbitals in the layers. The van der Waals attractive term was found by setting the energy minimum to fall at 3.37A. When values of the effective nuclear charge and effective quantum number proposed by Ko…
Irreversible Dehydration in Montmorillonite
In a paper to the Faraday Society (1946), Mering showed that the temperature to which one required to heat montmorillonite to produce irreversible collapse of the c-axis depended on the exchangeable cation. With Na-montmorillonite irreversibility began at about 550°C but with Ca-montmorillonite below 350°C During a st…
The crystal structure of thorium and zirconium dihydrides by X-ray and neutron diffraction
Thorium forms a tetragonal lower hydride of composition ThH{sub 2}. The hydrides ThH{sub 2}, ThD{sub 2} and ZrD{sub 2} have been studied by neutron diffraction in order that hydrogen positions could be determined. The hydrides are isomorphous, and have a deformed fluorite structure. Metal-hydrogen distances in thorium…
976. Conjugated macrocycles. Part XXIV. A new type of cross-conjugated macrocycle, related to the azaporphins
J. A. Elvidge and R. P. Linstead, J. Chem. Soc., 1952, 5008 DOI: 10.1039/JR9520005008
The calcination of dolomite. Part I.—The kinetics of the thermal decomposition of calcite and of magnesite
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The thermal degradation of polyvinyl acetate. I. Products and reaction mechanism at low temperatures
The first page of this article is displayed as the abstract.
Weathering Sequence of Clay‐size Minerals in Soils and Sediments
Abstract Studies were made of several clays of soils and other deposits to clarify the nature of weathering of layer silicates. Data obtained by X‐ray diffraction, thermal, R(OH)n sorption, and elemental analyses lead to the proposal of general occurrence of interstratified X‐amorphous zones in 2:1 layer silicates. As…
The p‐phenylene linkage in linear high polymers: Some structure–property relationships
Abstract The high crystallite melting point of polyethylene terephthalate (Terylene) compared with the melting points of the aliphatic polyesters emphasizes the significance of the p ‐phenylene linkage as an important factor determining polymer properties. A consideration of other polymer structures containing the p ‐…
Théorie du traînage magnétique de diffusion
Après avoir rappelé l'existence et la théorie du traînage de fluctuations (ou traînage irréversible), l'auteur développe une théorie du traînage magnétique de diffusion (ou traînage réversible) selon laquelle les atomes étrangers interstitiels, qui sont à l'origine du phénomène, agiraient par couplage magnétocristalli…
681. Studies in co-ordination chemistry. Part XIII. Magnetic moments and bond types of transition-metal complexes
F. H. Burstall and R. S. Nyholm, J. Chem. Soc., 1952, 3570 DOI: 10.1039/JR9520003570
On the generation of vacancies by moving dislocations
New experiments of Molenaar and Aarts, Blewitt and others seem to confirm the view of the author, previously based only on the experiments of Gyulai and Hartly and Stepanow on sodium chloride, that vacant lattice sites, and possibly interstitial atoms, are generated during plastic flow in ductile crystals, particularl…
Failure and Fracture of Metals as Nucleation Processes
The discontinuous phenomena in plasticity of metals, such as the yielding, the state of ultimate strength and the brittle fracture, were regarded as a kind of Markoff process, and studied from the standpoint of nucleation theory. The fundamental features of these types of failures, namely, (1) the relation between str…
Propagation of a Boundary of Fusion
We consider a volume of material, divided into two regions 1 and 2. each of density ρ, by a moving surface S. On S a change of phase occurs, at a definite temperature (which we may take to be zero) and with absorption or liberation of a latent heat L per unit mass. If θ l , k l , K 1 are the temperature, thermal condu…
Ferrites
With d.c. electrical resistivities several orders of magnitude greater than those of the ferromagnetic metals, and magnetic saturation intensities in some cases less than one order of magnitude smaller, the ferrites gave promise of greater `effective permeability' and lower `eddy-current' loss in high-frequency magnet…