Turnbull's blue and Prussian blue: KFe(III)[Fe(II)(CN)6]
Turnbull's blue and Prussian blue are identical in all respects and consists of iron in the oxidation states of KFe(III)[Fe(II)(CN)6].
Materials Literature
文献浏览
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
A simple model for the virtually crosslinked block copolymers
Abstract A simple model is presented for the virtual crosslink effect in triblocks of the type A–B–A, where A is a segment having a relatively high T g value and B is a segment having a relatively low T g value. It is assumed that phase relationships can be estimated by using thermodynamics of polymer mixtures, but ce…
Properties of Some Selected Europium-Activated Red Phosphors
Abstract not Available.
Effect of Hydrostatic and Shock-Wave Compressions on the Magnetization of a 31.4 at.% Ni–Fe Alloy
The saturation magnetization of a 31.4 at.% Ni–Fe alloy has been measured as a function of hydrostatic pressure between 0 and 26 kbar, and as a function of shock-wave compression between 2.5 and 112 kbar. From the hydrostatic pressure measurements, a zero-pressure value of the pressure derivative of the saturation mag…
Permeation, Diffusion, and Solubility of Deuterium in Pyrex Glass
The permeation of deuterium through thin Pyrex bulbs was measured with a mass spectrometer. The activation energies and absolute values at 200°C for permeation and diffusion were nearly the same as for deuterium in fused silica. The solubility of deuterium in Pyrex was independent of temperature, and about the same as…
Formation of spherulities in polyamides. IV. Even–odd polyamides and poly(ω‐aminocarboxylic acids)
Abstract Isothermal and nonisothermal spherulitic crystallization in even–odd and poly(ω‐aminocarboxylic acids) has been studied for a range of fusion conditions and solidification temperatures. The variety of spherulites so formed are classified mainly by optical microscopy. It is found that polyamides with similar t…
The Transition From Continuum to Molecular Flow
The field of fluid mechanics is rapidly advancing, driven by unprecedented volumes of data from experiments, field measurements, and large-scale simulations at multiple spatiotemporal scales. Machine learning (ML) offers a wealth of techniques to extract ...Read More
Oxidation of 304L Stainless Steel by Steam and by Air
The oxidation of 304L stainless steel has been measured in steam and in air in the temperature range from 1000 to 1375 C (1832 to 2507 F) using a thermogravimetric technique. This temperature range is of interest in the analysis of a reactor loss-of-coolant accident. Experiments in steam showed initial linear weight g…
Fermentation of π-Paraffins by Yeast
1) In order to study the relationship between α-KGA productivity and taxonomical classification, 141 strains of identified yeast were cultivated in the media containing n-paraffins. The high productivity of α-KGA was found exclusively in Candida lipolytica. Since the productivity of α-KGA was seen in all the strains o…
A Study of the Formation and Dissolution of Porous Anodic Oxide Films on Aluminum: Behavior of the Porous Layer
The formation and dissolution of porous alumina films in sulfuric acid was studied by the incorporation of the radiotracer into the film during preparation. The results have shown that (a) the formation site of the porous oxide is the barrier layer‐porous layer interface, (b) the dissolution time for porous films is i…
Solid-state reaction between zinc oxide and ferric oxide
The solid-state reaction ZnO + Fe2O3→ ZnFe2O4 has been studied by means of magnetic and thermo-gravimetric measurements and by X-ray analysis. Because of the diamagnetic nature of the Zn2+ ion, intermediate products can be identified and a mechanism proposed by Reijnen has been confirmed for this reaction. Magnetizati…
Single‐Polynomial Analysis of Ionograms
A new formulation of the single‐polynomial analysis is presented, in which the electron density profile is assumed to begin with a flat base at a height equal to the lowest measured virtual height. This formulation gives a more accurately defined profile with only a small number of points and agrees with the assumptio…
New macrocyclic aromatic systems related to porphins
M. J. Broadhurst, R. Grigg and A. W. Johnson, J. Chem. Soc. D, 1969, 23 DOI: 10.1039/C29690000023
Shell regeneration in Helix pomatia
The early stages of the shell regeneration in Helix pomatia have been studied by electron microscopy. Within 1 hour after the removal of a piece of shell, minute crystals of CaCO 3 appear in the injured area. Electron diffraction study showed these crystals to be aragonite. Calcite crystals were also present at later…
Thermodynamic properties of ideally crystalline polyethylene
Results are presented of parallel calorimetric and dilatometric experiments on several meltcrystallized polyethylenes, with various thermal histories, over the range –35°→ liquidus. Enthalpic and weight fraction degrees of crystallinity are in good agreement up to 60°C, where direct comparison with n-alkane data is po…
Fitting a Gamma or Log-Normal Distribution to Fibre-Diameter Measurements on Wool Tops
O. A. Y. Jackson, Fitting a Gamma or Log-Normal Distribution to Fibre-Diameter Measurements on Wool Tops, Journal of the Royal Statistical Society. Series C (Applied Statistics), Vol. 18, No. 1 (1969), pp. 70-75
Incorporation of zinc ion into a synthetic water-soluble porphyrin
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIncorporation of zinc ion into a synthetic water-soluble porphyrinT. Peter Stein and Robert A. PlaneCite this: J. Am. Chem. Soc. 1969, 91, 3, 607–610Publication Date (Print):January 1, 1969Publication History Published online1 May 2002Published inissue 1 January 1969https://…
IDENTIFICATION OF FROST-SUSCEPTIBLE PARTICLES IN CONCRETE AGGREGATES
AGGREGATE TEST METHODS TO IDENTIFY FROST-SUSCEPTIBLE PARTICLES IN CONCRETE AGGREGATES ARE EVALUATED. TWO APPROACHES TO THE PROBLEM OF IDENTIFYING FROST-SUSCEPTIBLE AGGREGATE PARTICLES WERE FOLLOWED. RELATIVELY HOMOGENEOUS AGGREGATE FRACTIONS WERE TESTED IN CONCRETE UNDER SIMULATED FIELD CONDITIONS, TO (1) DEVELOP A RA…
Triptycene polymers
Abstract New, bifunctional, bridgehead‐substituted triptycenes were synthesized and used to prepare a series of triptycene polymers, including polyesters, polyamides, polyurethanes, and a polyoxadiazole. Certain of these partially aliphatic polymers were thermally stable. Clear and colorless films were obtained in som…
Trifluoroacetate complexes of cobalt(II), nickel(II), and copper(II) with pyridine-type ligands. Part I. Metal(II) trifluoroacetates and copper(II) complexes
Complexes of the general type CuLx(CF3CO2)2, where x= 2 or 4, L = pyridine, mono-and di-substituted pyridines, quinoline, or isoquinoline, have been prepared and characterised by spectroscopic methods. The complexes are six-co-ordinate with the trifluoroacetate group involved in either mono-or bi-dentate attachment to…