852. The preparation, properties, structure, and spectra of 12-tungstomanganic(IV) acid and its stability relative to analogous 12-heteropolytungstates
D. H. Brown, J. Chem. Soc., 1962, 4408 DOI: 10.1039/JR9620004408
Materials Literature
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Chemische Transportreaktionen. IX. Der Transport von TiN mit HCl im Molybdänröhrchen
Abstract Die Umsetzung von TiN mit HCl, bei der H 2 , N 2 und die gasförmigen Chloride TiCl 4 , TiCl 3 und TiCl 2 nebeneinander entstehen, verläuft oberhalb 1300°C hinreichend schnell und reversibel, so daß sie den chemischen Transport von TiN im Temperaturgefälle ermöglicht. Im Zusammenhang hiermit wurde eine Arbeits…
Uniform Staining of Nerve Endings in Skeletal Muscle with Gold Chloride
Skeletal muscle, teased into strips several millimeters long and 1 mm or less thick, is fixed in a 3:1 mixture of lemon juice and formic acid until transparent. The tissue is compressed between folds of absorbent material to remove excess fixative and impregnated for 10 min in a volume of 1% gold chloride equal to the…
Taxonomy of Algae
Principles of Taxonomy, especially pertaining to the Algae are discussed at length. Though primarily based on morphology, other criteria, such as reproduction and life history flagellation, cytological details, pigmentation, nature of metabolic products, etc., play a distinct and sometimes a significant role at differ…
670. The crystal structure of potassium methylenedisulphonate
M. R. Truter, J. Chem. Soc., 1962, 3393 DOI: 10.1039/JR9620003393
Non-stoichiometric clathrate compounds of water. Part 3.—Inclusion energies and constants in the small cavities of structure II
R. M. Barrer and D. J. Ruzicka, Trans. Faraday Soc., 1962, 58, 2253 DOI: 10.1039/TF9625802253
RAMAN‐ und Ultrarotspektroskopische Untersuchungen an Salzen der Peroxodischwefelsäure
Abstract Es werden die RAMAN‐Spektren von Alkalisalzen der Peroxodischwefelsäure in wäßriger Lösung und im festen Zustand aufgenommen und die Ultrarotspektren im festen Zustand gemessen. Die gefundenen Frequenzen werden den einzelnen Schwingungsformen zugeordnet. Die Auswertung der Spektren im Hinblick auf die Struktu…
The Oxidation of an Iron-5 Per Cent Chromium Alloy in the Temperature Range 600°–850°C
An investigation is reported on the oxidation of an iron‐5% chromium alloy over the temperature range 600°–850°C. The film on abraded specimens underwent transformation by nodular‐type growths to produce a scale containing iron chromite and ferric‐chromic oxide. The alloy underlying iron chromite was susceptible to in…
Genesis of the Barium Titanate Butterfly Twin
It has been discovered that the formation of the butterfly twin in barium titanate depends on both the average particle size and the particle‐size distribution of the starting material. Maximum twin yields occur when the particles have an average size near 1μ with a rather sharp cutoff in the distribution in the large…
Improved Ion Drag Pump
The measured characteristics (pressure-voltage, current-voltage, and efficiency) of an ion drag pump using razor edge emitters are reported and comparisons made with theory. The advantages of this pump over one using corona point emitters are discussed.
A Study on the Twist Irregularity of Yarns Spun on the Ring Spinning Frame
The authors studied theoretically the behavior of fiber bundles as they are delivered from the front rolls of a ring spinning frame and twisted. The causes of the long-term twist irregularity found in some yarns and their effects on yarn properties have been analyzed.
Unusual Ternary Behavior of Transition Metal Borides
Abstract not Available.
The electrical resistivity of stacking faults
Abstract A one‐electron theory of the scattering of electrons from infinitely extended stacking faults in f. c. c. metals is given for an arbitrarily shaped Fermi surface. The corresponding linearised transport problem is then solved without approximation. The wave functions are represented by expansions in terms of W…
Photodegradation and high temperature degradation of polymers
Abstract
The Effect of Material Variables on the Fatigue Life of AISI 52100 Steel Ball Bearings
The effect of material variables on the fatigue life of AISI 52100 steel in ball bearings is examined. An apparently significant negative correlation with the abundance of certain trace alloying elements has been found. An effect of gas content has not been proven. Some difference in the endurance of bearings tempered…
Notes on Epiphytic Diatoms upon Sea-weeds from Japan
Epiphytic diatoms found upon various sea-weeds collected from the Japanese coast were examined. Thirty-two diatoms, which seem to be main members of the epiphytic communities, are specified in this report.
Recent Developments in the Measurement of Orientation in Polymers by X-Ray Diffraction
Abstract From pole figure data, the orientation of a crystallographic direction R in any reference direction Q in a sample can be quantitatively expressed by the average <cos 2 σ>, where σ is the angle between Q and R in a crystal. In general, <cos 2 σ> can be evaluated in terms of the experimental average…
Heat of combustion of phosphorus and the enthalpies of formation of P4O10 and H3PO4
W. S. Holmes, Trans. Faraday Soc., 1962, 58, 1916 DOI: 10.1039/TF9625801916
Chemical Extraction of Potassium from Soils and Micaceous Minerals With Solutions Containing Sodium Tetraphenylboron: III. Illite
Abstract Grundite‐illite was treated with NaBPh 4 solutions at 25° C. for various periods of time to determine the amount of K that can be removed, the rate of K removal and the effect of this treatment on the properties of the mineral. Only the first 30 me. K per 100 g. were removed from <20µ illite at a rate that…
Synthesis of polyanhydrides. III.1 Polyanhydrides of five‐membered heterocyclic dibasic acids2
Abstract During the course of study on the synthesis of polyanhydrides from aromatic and aliphatic dibasic acids, various types of five‐membered heterocyclic polyanhydrides was investigated. As starting materials the five‐membered heterocyclic dibasic acids, furan‐2,5‐di‐β‐propionic acid, tetrahydrofuran‐2,5‐di‐β‐prop…