Materials Literature
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Ninety pages are devoted to the study of the error in volumetric titration, and can be of interest only to an occasional professional analyst. The apparatus, principles and practice of microdiffusion analysis are discussed for 186 pages; these will be of interest to the biochemist, but the methods will probably not su…
Three specimens of rutile were prepared and the dielectric properties studied over a range of frequency and temperature. A dielectric constant of approximately 100 was found which remained substantially constant through the highest radiofrequencies, falling off only in the infra-red region. The dielectric losses are l…
A bstract An attempt is made to apply the ideas of crystal chemistry to the problem of immiscibility in glass systems. Miscibility is favored by the tendency of the networkforming cations, Si, B, and P, to bond with all available oxygens in the melt. Immiscibility is favored in compositions which do not allow the othe…
The interaction theory of Rochelle salt is extended by supplementing the expression for the free energy of the deformed and polarized crystal by a term proportional to the fourth power of the polarization in the $a$ direction. This second approximation explains the dielectric and elastic saturation phenomena above the…
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 B. E. Warren, "Symposium on Optical Methods for Study of Molecular StructureI. The X-Ray Diffraction Method*," J. Opt. Soc. Am. 30, 369-373 (1940) Expo…
A double crystal spectrometer has been used to measure the shapes of the $K{\ensuremath{\beta}}_{2,5}$-emission lines and the $K$-absorption edges of zinc and nickel in two zinc-nickel alloys containing 17 percent zinc and 30 percent zinc by weight, respectively. These lines arise from transitions of valence and 3d el…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA Comparison of Esterification and Ester Interchange KineticsPaul J. FloryCite this: J. Am. Chem. Soc. 1940, 62, 9, 2261–2264Publication Date (Print):September 1, 1940Publication History Published online1 May 2002Published inissue 1 September 1940https://pubs.acs.org/doi/10.…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Infrared Spectrum of Potassium Cyanate SolutionsDudley WilliamsCite this: J. Am. Chem. Soc. 1940, 62, 9, 2442–2444Publication Date (Print):September 1, 1940Publication History Published online1 May 2002Published inissue 1 September 1940https://pubs.acs.org/doi/10.1021/ja…
ADVERTISEMENT RETURN TO ISSUEArticleNEXTKinetics of the Degradation of Polyesters by Alcohols1Paul J. FloryCite this: J. Am. Chem. Soc. 1940, 62, 9, 2255–2261Publication Date (Print):September 1, 1940Publication History Published online1 May 2002Published inissue 1 September 1940https://pubs.acs.org/doi/10.1021/ja0186…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCatalysts From AlloysMurray RaneyCite this: Ind. Eng. Chem. 1940, 32, 9, 1199–1203Publication Date (Print):September 1, 1940Publication History Published online1 May 2002Published inissue 1 September 1940https://pubs.acs.org/doi/10.1021/ie50369a030https://doi.org/10.1021/ie5…
Abstract The role of various types of lattice flaws is discussed in their bearing on melting and crystal structure. Freezing-point determinations on lattices of a single molecule indicate the presence of such flaws in the crystals of polymethylene compounds. Freezing-point determinations on composite lattices of keton…
Young's modulus of seven single crystals of beta-brass has been measured as a function of temperature from 25\ifmmode^\circ\else\textdegree\fi{}C to 505\ifmmode^\circ\else\textdegree\fi{}C for the purpose of studying the order-disorder phenomenon. The method used is that of the composite piezoelectric oscillator. The…
Summary In crystals throughout which the interatomie binding is not uniformly of one type we may distinguish aggregates of atoms within which the binding is of one kind whereas that between one aggregate and the next is of a different nature. Such groups of atoms may be finite (molecules and complex ions) or they may…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAqueous Solubilities of Some Aliphatic KetonesP. M. Ginnings, Dorothy Plonk, and Eloise CarterCite this: J. Am. Chem. Soc. 1940, 62, 8, 1923–1924Publication Date (Print):August 1, 1940Publication History Published online1 May 2002Published inissue 1 August 1940https://pubs.a…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPlasticizers for Cellulose Acetate and Cellulose Acetate ButyrateC. R. Fordyce and I. W. A. MeyerCite this: Ind. Eng. Chem. 1940, 32, 8, 1053–1060Publication Date (Print):August 1, 1940Publication History Published online1 May 2002Published inissue 1 August 1940https://pubs.…
A bstract Samples of three purified illites, one purified montmorillonite, and one natural clay containing montmorillonite, quartz, and limonite were heated at successive temperatures up to 1400°C. X‐ray and optical determinations were made on all samples. The changes that take place in the clay minerals, illite and m…
Abstract Die Zustandsdiagramme der Zweistoffsysteme Germanium/Arsen, Germanium/Antimon und Germanium/Wismut wurden untersucht.
A bstract The effects of hydrogen as functions of time, temperature, and impurities in steel are described and experimentally demonstrated. Experimental evidence is presented to show that the blistering and boiling action over carbide areas in steel are due principally to hydrogen that associates with the carbon. Stee…
The moisture contents of ten kinds of textile fibres in the form of specially prepared yarns were determined when the fibres were in equilibrium with air for a series of relative humidities and tem peratures. Data were obtained for both "desorption." and "ad sorption," the yarns being brought to equilibrium from a wet…
Kozeny's approximate solution to the problem of fluid flow through porous media is developed and the result is checked by experimental data on air flow through plugs of cotton, wool, rayon, and glass wool fibers. The solution gives WA=kγ02μ(τσ)(1−c)32c2(−δp2δx)for the isothermal linear flow of a gas. W/A is the macros…