1,290 Result(s)
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B **
Conference Paper
Chemistry
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Chapter and Conference Paper
Light scattering in solutions of proteins and other large molecules
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Chapter and Conference Paper
Chemical treatment of isotopes produced in a nuclear reactor
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Chapter and Conference Paper
Pentosephosphate und Heptulosephosphat im Kohlenhydratstoffwechsel
Die ersten Bemühungen, die für die lebenden Organismen charakteristischen chemischen Prozesse aufzuklären, richteten sich hauptsächlich auf die alkoholische Gärung der Hefe und die Milchsäurebildung im Muskel....
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Chapter and Conference Paper
A New Modification of Elemental Boron
A new modification of elementary boron has been prepared by the decomposition of purified BBr3 on hot W and Re filaments at various temperatures close to 1200°C.
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Chapter and Conference Paper
Some New Rare Earth Borides
Reaction of rare earth (and yttrium) metal oxides with boron, in the proper proportion, at elevated temperatures, has yielded a previously unreported series of binary rare earth (and yttrium) for ides correspo...
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Chapter and Conference Paper
The Application of Coulometric Bromination Techniques to the Determination of Unsaturated Organic Compounds
A number of unsaturated organic compounds have been determined by coulometric bromination. This method has been used successfully to titrate such compounds as styrene, monochlorostyrene, allyl alcohol, vinylto...
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Chapter and Conference Paper
The Fluorescence of Aromatic Nitrogen Heterocyclics
Earlier reports from this laboratory revealed striking solvent effects on the positions of the fluorescence emission maxima in the indole series. The present report describes the extension of this work to the ...
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Chapter and Conference Paper
A Study of the Complete Pattern of Curves for a Variety of Matrices
The variation in the fluorescent intensity of a given-wavelength X-radiation with its matrix has been found to be generally inverse to the variation in its mass absorption coefficient. Intensity-matrix correla...
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Chapter and Conference Paper
The Use of Time-Resolved Spectroscopy in the Investigation of Electrode Phenomena in Sparks
The appearance of spectral lines in a spark in approximately 10-8 sec after the spark begins indicates the possibility that some other method besides electron heating is responsible for sample vaporization. Somer...
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Chapter and Conference Paper
The Vacuum X-ray Quantometers as Applied to Raw Materials for the Iron and Steel Industries
During 1960 ARL introduced the first commercial multichannel vacuum X-ray spectrometers for the simultaneous analysis of several elements. These instruments have been applied successfully to the analysis of ma...
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Chapter and Conference Paper
Analysis of Nonmetallics by X-Ray Fluorescence Techniques
Last year at this Symposium, we discussed the use of X-ray fluorescence techniques for analyzing the products and by-products of the iron and steel industry, including some of the primary raw materials such as...
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Chapter and Conference Paper
A Completely Automatic Preparative Scale Gas Chromatograph
During recent years the use of gas chromatography for the separation and isolation of relatively large quantities of material has become increasingly popular. Although preparative scale chromatography is still...
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Chapter and Conference Paper
Quantovac Analysis of Copper and Copper-Base Alloys
The Quantovac, introduced by Applied Research Laboratories in this country in 1957, was developed specifically for the complete analysis of iron and steel. Rapid, accurate, and simultaneous analyses were neede...
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Chapter and Conference Paper
New Organosulfur Derivatives of Metal Carbonyls
Numerous unusual organosulfur transition metal compounds have been obtained by reactions of various metal carbonyls and cyclopentadienyl -metal carbonyls with certain mercaptans, sulfides, disulfides, and dith...
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Chapter and Conference Paper
Microcalorimetric Determination of the Enthalpy of Formation of the Complex Ions of Trivalent Plutonium, Americium and Lanthanium with EDTA
As to date, quantitative data on actinide complex species are very scarce and, when existing often limited to stability constants determinations. No direct calorimetric measurement of the enthalpy of complexin...
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Chapter and Conference Paper
The Influence of Steric and Electronic Effects Upon the Stereochemistry of Group VIII Metal Complexes
Complexes of Iron, Cobalt and Nickel occur in a variety of stereo-chemistries. Nickel(II) is particularly interesting in that apparently small differences in the nature of the ligands around the metal ion can ...
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Chapter and Conference Paper
Electronic Structures of Square Planar Metal Complexes
The relative energies of the molecular orbitals in square planar metal complexes is a problem which has received considerable attention in the last few years (1–10). of the antibonding molecular orbitals deriv...
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Chapter and Conference Paper
Olefin and Π-Allylic Complexes of Palladium, Platinum and Iridium
We are making a study of compounds containing metal-carbon bonds with particular reference to complexes of the second and third transition series. Compounds of this type are known to be catalytic intermediates...
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Chapter and Conference Paper
Some New Adducts of Iodosilane
Monohalosilanes are known to combine very readily with tertiary amines to yield 1:1 adducts (1). in the case of iodosilane, a 1:2 adduct with trimethylamine has also been reported, made under forcing condition...
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Chapter and Conference Paper
Novel Acetylene Tungsten Carbonyl Complexes
We recently reported the preparation of a new acetylenic complex of tungsten (1). This study has now been extended to other alkynes and the other subgroup VI-B metals.
