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The catalytic action of neutral salts : the effect of normal alkali sulphates on alkali acid sulphates in the ketonic splitting of ethyl acetoacetateGoodhue, Elbridge Alvah. January 1927 (has links) (PDF)
Thesis (M.S.)--University of Missouri, School of Mines and Metallurgy, 1927. / The entire thesis text is included in file. Typescript. Illustrated by author. Title from title screen of thesis/dissertation PDF file (viewed October 21, 2009) Includes bibliographical references.
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On the mechanism of ammonium ion uptake by maize rootsBecking, Jan Hendrik, January 1956 (has links)
Thesis--Leiden. / Vita. Bibliography: p. 75-79.
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Solubility and fractionation of acid-precipitated casein using salts of certain organic acidsGould, Stephen Phillip, January 1937 (has links)
Thesis (Ph. D.)--Columbia University, 1937. / Vita. Bibliography: p. 47-49.
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Electrolytic reduction of nitro compounds in concentrated aqueous salt solutionsGerapostolou, Basil George, January 1935 (has links)
Thesis (Ph. D.)--Columbia University, 1935. / Vita.
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The adsorption of silver salts by silver iodideBeekley, John Sherman. January 1924 (has links)
Univ., Diss--Princeton.
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A kinetic template effect in arylphosphonium salt formationCropper, Paul Edward January 1988 (has links)
This thesis describes studies of a "kinetic template effect" which assists the formation of arylphosphonium salts from aryl halides and tertiary phosphines in the presence of a transition metal halide catalyst in refluxing ethanol. The "kinetic template effect" arises from the presence in the aryl halide of a limited range of orthosubstituents capable of intramolecular coordination with the metal at a critical stage of the reaction. In Chapter One, the "kinetic template effect" is compared with the better known "thermodynamic template effect". Earlier work on related "kinetic template effects" in the formation of aryl-phosphorus bonds is reviewed. The evidence for the possible involvement of aryl-metal intermediates in such reactions is also discussed. Chapter Two is concerned with the design and synthesis of potential template molecules. A model is proposed for the features necessary in the template substituent in terms of the nature and position of the donor atom or group essential for the replacement of the ortho-halogen under mild conditions. Chapter Three describes a kinetic study of the nickel (II) catalysed reactions of ortho-haloaryl Schiff's base and ortho-haloarylazo-dyestuff templates with tertiary phosphines. A rate law is deduced which indicates a first order dependence in each reactant, i.e. rate a [template] [phosphine] [catalyst], an overall third order expression. Rate studies also indicate that the nature of the orthohalogen is important, the order of replacement being I > Br > Cl. The effects of substituents remote from the ortho-haloaryl template are also considered. A mechanistic scheme consistent with the rate data is proposed. The X-ray crystal structures of two arylphosphonium salts derived from template aryl halides are discussed in Chapter Four, providing unequivocal proof that the position of replacement of halogen in substrates bearing more than one replaceable halogen, in different positions, is ortho with respect to the template donor group.
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The use of nanofiltration membrane in desalinating brackish waterHajarat, Rasha January 2010 (has links)
No description available.
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Bis Ammonium Salts of DialkylaminoalkoxypropionitrilesWoods, Roy Jack 08 1900 (has links)
This paper concerns the preparation of some bis derivatives of dialkylaminoalkoxypropionitirles from trimethylene, hexamethylene, octomethylene, and decamethylene bromides. These compounds are to be tested for curariform activity and anesthetic values by Parke, Davis and Company.
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Reactions of 1, 2-dithiolium cations and formation of metal thio-l-dicarbonyl compoundsShobsngob, Sujin. January 1981 (has links)
No description available.
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The Ammonification and nitrification of cottonseed meal and the nitrification of ammonium sulphateKnudsen, Harold R. 01 January 1930 (has links) (PDF)
No description available.
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