Materials Literature
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The major part of the anisotropy in the paramagnetic susceptibility of Mn${\mathrm{F}}_{2}$ above the Curie point, as measured by Stout and Griffel, can be accounted for by magnetic dipole interactions. These interactions affect the anisotropy in different ways above and below the Curie point and lead to an anisotropy…
Abstract Examination of the paraffin n-hectane in the electron microscope has given evidence of two different growth mechanisms for crystals of this compound. The one corresponds to the spiral growth mechanism already observed for n-hexatriacontane (Dawson & Vand 1951), and the orthorhombic lozenge-shaped crystals…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCorrosion Control with Organic InhibitorsJ. N. BrestonCite this: Ind. Eng. Chem. 1952, 44, 8, 1755–1761Publication Date (Print):August 1, 1952Publication History Published online1 May 2002Published inissue 1 August 1952https://pubs.acs.org/doi/10.1021/ie50512a021https://doi.…
Summary At relatively low temperatures boron trifluoride and hydrogen fluoride gave high yields of polymers from soybean fatty acids and methyl esters. The use of 2% boron trifluoride as catalyst at 150° to 200° resulted in the polymerization of 50–60% of the methyl esters within one hour. The viscous polymeric fracti…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Spectra of α,β,γ,δ-Tetraphenylchlorin and its Metallo-derivativesG. D. Dorough and F. M. HuennekensCite this: J. Am. Chem. Soc. 1952, 74, 16, 3974–3976Publication Date (Print):August 1, 1952Publication History Published online1 May 2002Published inissue 1 August 1952http…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPitting Corrosion Characteristics of Aluminum - Influence of Magnesium and Manganese.P. M. Aziz and Hugh P. GodardCite this: Ind. Eng. Chem. 1952, 44, 8, 1791–1795Publication Date (Print):August 1, 1952Publication History Published online1 May 2002Published inissue 1 August…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffect of Temperature on Corrosion of Metals by WaterNorman HackermanCite this: Ind. Eng. Chem. 1952, 44, 8, 1752–1755Publication Date (Print):August 1, 1952Publication History Published online1 May 2002Published inissue 1 August 1952https://pubs.acs.org/doi/10.1021/ie50512a…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSome Physical Properties of Diacetone Alcohol, Mesityl Oxide and Methyl Isobutyl KetoneE. T. J. Fuge, S. T. Bowden, and W. J. JonesCite this: J. Phys. Chem. 1952, 56, 8, 1013–1016Publication Date (Print):August 1, 1952Publication History Published online1 May 2002Published i…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAction of Sodium Silicate as a Corrosion Inhibitor in Water PipingLeo Lehrman and Henry L. ShuldenerCite this: Ind. Eng. Chem. 1952, 44, 8, 1765–1769Publication Date (Print):August 1, 1952Publication History Published online1 May 2002Published inissue 1 August 1952https://pu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCorrosion Resistance of Titanium, Zirconium, and Stainless SteelLex B. Golden, I. Roy Lane, and Walter L. AchermanCite this: Ind. Eng. Chem. 1952, 44, 8, 1930–1939Publication Date (Print):August 1, 1952Publication History Published online1 May 2002Published inissue 1 August…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhysical Properties of Perfluoro-n-hexane and Perfluoro-2-methylpentaneVernon E. Stiles and George H. CadyCite this: J. Am. Chem. Soc. 1952, 74, 15, 3771–3773Publication Date (Print):August 1, 1952Publication History Published online1 May 2002Published inissue 1 August 1952h…
The previously proposed dependence of the structure of grain boundaries upon the angle of disorientation of the two grains is used as a basis of a quantitative consideration of diffusion along grain boundaries and in particular of the apparent activation energies. At small angles in the dislocation range the diffusion…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKnife-Line Attack of Stainless Steels CORROSION.Mars G. FontanaCite this: Ind. Eng. Chem. 1952, 44, 8, 87A–90APublication Date (Print):August 1, 1952Publication History Published online6 October 2008Published inissue 1 August 1952https://pubs.acs.org/doi/10.1021/ie50512a006h…
Abstract When heated in a vaccum at 325° to 375°C., polystyrene yields mainly the monomer and some dimer, trimer, tetramer, etc., indicating that the breaks in the molecular chains occur largely at the ends. Polyethylene, under similar conditions, but at a some‐what higher temperature, yields fragments of an average m…
In view of the recent interest in the introduction of stacking faults in crystals during plastic deformation, the x-ray diffraction effects have been calculated for face-centered cubic crystals with deformation faults (as distinct from growth faults, the expressions for which are given in an appendix for comparison).…
The molecular field treatment of the magnetic properties of ferrites given by N\'eel is extended to take into account the antiferromagnetic exchange interactions within the two magnetic sublattices. On further subdividing the two lattices, we show that the ground state may, (1) have an antiparallel arrangement of the…
Abstract Porphyrins have been shown to be stronger bases than previously supposed, two protons being added in two stages to the nitrogen atoms in the conjugated tetrapyrrolic ring as the pH of an aqueous solution is decreased from pH 12 to 0. The existence of mono-cations of certain porphyrins in aqueous solution with…
Abstract The results are given of some measurements of the absorption coefficient and refractive index of water, methyl and ethyl alcohols at wave-lengths of 6·2 mm, 1·24 cm and 3·21 cm over the temperature range —10 to 50°C, including some observations on water in the supercooled state. The method used is based upon…
X-ray measurements have been made on a number of colchicine derivatives, in a search for a crygtal suitable for a structure analysis of the colchicine molecule. The methylene bromide and iodide addition complexes, C~eH25NO6.CH~X~, are isomorphous, in space-group P212~2 ~, with 4 molecules in a cell of dimensions a=9.1…
At compositions near FesN and Fern the structures proposed for e iron nitrides by previous workers from incomplete X-ray data are confirmed. At intermediate nitrogen concentrations and at concentrations less than that of FesN, additional superlattice reflexions, unaccounted for by these previously proposed structures,…