Index Catalog // ScholarsArchive@OSU

Reduction of zirconium(IV) at a Pt microelectrode in fused equimolar sodium chloride-potassium chloride

Creator:: McGlothlan, J. Kirk
Resource Type:: Masters Thesis

Study of simultaneous codeposition of metals at solid electrodes

Creator:: Yindepit, Somrat
Abstract:: As with many pairs of metals, the electrodeposition of Pb-Tl, Cu-Cd, and Cu-Ni at solid electrodes yielded partial polarization curves shifted from the polarization curves of the single metals. The curves for the more noble metals (Pb, Cu) were shifted negatively while the less noble metals'(Tl, Cd, Ni) curves were...
Resource Type:: Dissertation

A continuous amperometric monitor for aqueous sulfite solutions using bipolar current readout

Creator:: Porter, Miles John
Abstract:: A continuous amperometric monitor for aqueous sulfite solutions has been developed employing the electro-oxidation of sulfur (IV) in 0. 1 M sulfuric acid at a glassy carbon test electrode. The monitor employs a hydrodynamic flow cell, in which the solution stream enters the cell through an orifice impinging on the...
Resource Type:: Masters Thesis

A quantitative description of the silver/aqueous cyanide electrolyte interface and the effect of the interface on the rate of electrodeposition of silver

Creator:: Jewett, James Richard
Resource Type:: Dissertation

Electrode double layer measurements and voltammetry of some organosulfur compounds in sulfolane

Creator:: Starkovich, John A.
Abstract:: A new pulse method for measuring differential double layer capacitances has been developed in this work. The technique is based on the determination of the cell time constant which, for an ideally polarized test electrode-solution interface, is composed of the double layer capacitance and solution resistance. By applying small step...
Resource Type:: Dissertation

The electrochemical oxidation of aqueous sulfur dioxide solutions at a glassy carbon electrode

Creator:: Warden, Bruce Edward
Resource Type:: Masters Thesis

The theory and application of galvanovoltammetry. Design, construction and evaluation of a continuous liquid stream analyzer employing a galvanovoltammetric detector and low cost automatic digital concentration readout

Creator:: Kendall, Donald Ray
Abstract:: The theory and ways of applying a new electroanalytical detectior method were developed. The method, called galvanovoltammetry, consists of the measurement of current from the bipolar electrode of a three electrode cell which consists of a working electrode and a counter electrode, between which a constant current is applied, and...
Resource Type:: Dissertation

Optimization by transfer function estimation of the galvanovoltammetric determination of dissolved chlorine in a flowing stream

Creator:: Miller, Clinton Earl
Abstract:: Optimization of the galvanovoltammetric determination of dissolved chlorine in a flowing stream was achieved through the use of an analog computational device and improvements in the design of the galvanovoltammetric cell and accompanying electronic circuitry. An analysis system, applicable to industrial use over a range of flow rates and dissolved...
Resource Type:: Masters Thesis

Stationary electrode voltammetry and chronoamperometry in an alkali metal carbonate-borate melt

Creator:: Petcoff, Darrell George
Abstract:: The electrochemistry of the lithium-potassium-sodium carbonate-borate melt was explored by voltammetry and chrono-amperometry. In support of this, a controlled-potential polarograph and associated hardware was constructed. Several different types of reference electrodes were tried before choosing a porcelain membrane electrode containing a silver wire immersed in a silver sulfate melt. The...
Resource Type:: Dissertation

Application of piezoelectric quartz crystal as partition detector : development of a digital transducer

Creator:: Janghorbani, Morteza
Abstract:: AT-cut piezoelectric quartz crystals coated with low vapor pressure materials are evaluated as digital transducers in completely digital detection systems for monitoring gas streams. Mathematical relations describing the detectors are developed and tested. Specific application is made to monitoring gaseous sulfur compounds commonly found in stack effluents of pulp mills....
Resource Type:: Dissertation

The study of fluo-tantalum species by solvent extraction

Creator:: Coker, Marjory Carol
Abstract:: The extraction of tantalum fluoride complexes by large cationic extractants (tetraphenylarsonium ion, TPA, and crystal violet) and by methyl isobutyl ketone (MIBK) has been investigated as a function of fluoride concentration using ¹⁸² Ta as tracer. Extractions by the cationic extractants into chloroform were carried out in the absence of...
Resource Type:: Masters Thesis

Optimization of the continuous analysis Pearl-Benson method for lignosulfonates

Creator:: Blaine, Roger Lee
Abstract:: A procedure is described for the optimization of a previously described continuous analysis adaptation of the Pearl-Benson or nitroso method for estimation of spent sulfite liquor (SSL) or ligno-sulfonates. The optimized procedure has a response time of 6.5 minutes. In order to monitor samples whose SSL concentration is between 0...
Resource Type:: Dissertation

An analysis system for the remote determination of oxygen with data transmission via pulse duration telementry

Creator:: Springer, John Scott
Abstract:: An instrument was developed which performs analysis of the oxygen content of air by means of a commercial polarographic oxygen electrode. The oxygen analyzer is part of a portable instrument which converts the current from the oxygen electrode into a pulse whose width is proportional to the oxygen concentration. This...
Resource Type:: Masters Thesis

Flame ionization detection of hydrocyanic acid ; Analysis of trace aqueous solutions

Creator:: Claeys, Robert Raymond
Abstract:: A gas chromatographic procedure was developed for the determination of nanogram quantities of hydrocyanic acid using a flame ionization detector. Excellent chromatograms were obtained on a porous polyaromatic polymer column (Porapak Q) at 60°C. The procedure was employed for the analysis of HCN in aqueous cyanide solutions. Solutions as low...
Resource Type:: Dissertation

Analytical utilization of hafnium and zirconium borohydrides

Creator:: Walsh, Ronald Edward
Resource Type:: Dissertation

Automation of the Pearl-Benson method for spent sulfite liquor

Creator:: Olson, Gary Gilman
Abstract:: An automatic, continuous analyzer has been developed which is suitable for estimating the level of spent sulfite liquors (SSL) in laboratory samples. The analyzer makes use of a version of the Pearl-Benson, or nitroso method, and, in its present form, is useful for samples whose actual SSL solids concentrations are...
Resource Type:: Dissertation

Studies of electrode processes with voltage scanning coulometry

Creator:: Sandoz, Dennis Paul
Abstract:: Voltage scanning coulometry was used to study the effects of electrode surfaces and metals on the electrochemistry of the ferric-ferrous couple and the silver ion-silver metal couple. The analytical technique called voltage scanning coulometry is very similar to controlled potential coulometry. The main difference is that in voltage scanning coulometry...
Resource Type:: Masters Thesis

The analytical application of the galvanic dissolution of niobium and tantalum : the determination of nitrogen

Creator:: VanSanten, Richard Theodore
Abstract:: Nitrogen is a contaminant of niobium and tantalum adversely affecting the workability of the metal. With recent interest in the refractory metals, one problem the chemical analyst must solve is the accurate determination of nitrogen in niobium and tantalum at very low levels. The usual method of assaying for nitrogen...
Resource Type:: Masters Thesis

Controlled potential coulometry in non-aqueous solvents--application to the Karl Fisher determination of water and to aromatic nitro compounds in dimethyl-sulfoxide

Creator:: Lindbeck, Melven Raymond
Abstract:: Aromatic Nitro Compounds. The n-values for the reduction of the isomers of nitrophenol and nitrobenzoic acid and for several other nitro compounds are determined in dimethylsulfoxide by controlled potential coulometry. A procedure is given in which one mole of nitro compound may be determined with errors of less than one...
Resource Type:: Dissertation

The design and evaluation of a recording conductometric titrator

Creator:: Knarr, Richard Dennis
Abstract:: A Heath EUW-20A Servo-Recorder was converted to a self-balancing, recording Wheatstone bridge. The EUW-20A 10000Ω slide-wire was used as the variable resistance arm of the bridge, the servo-amplifier was used as the bridge unbalance signal detector, and the servo-motor was used to balance the bridge automatically. The bridge was arranged...
Resource Type:: Masters Thesis

Chronopotentiometry of Sm(II) and Pm(III) in molten LiCl-KCl eutectic

Creator:: Nixon, Richard Allen
Abstract:: Samarium (III) and promethium (III) were studied by chronopotentiometry in a molten LiCl-KC1 eutectic. Tungsten electrodes were used to avoid alloying effects encountered with platinum electrodes. Adsorption phenomena were observed which prevented the study of any kinetic effects. The quarter wave potentials were measured as: Sm(III) = 0.95 ± 0.05...
Resource Type:: Masters Thesis

Design of a digital repetitive titrator

Creator:: Wendlick, Joseph David
Abstract:: An automatic digital titrator for use in potentiometric titrations is described. The automatic titrator described provides a permanent digital and analog record of all titrations. The modular units which combine to form the automatic titrator are described individually. Accuracy achieved by the titrator on successive acid-base titrations of ammonia in...
Resource Type:: Masters Thesis

Coulometric determination of dissolved oxygen

Creator:: Healy, Michael Lyon
Abstract:: Many different aspects of the determination of dissolved oxygen by controlled potential coulometry were investigated to find a means of measuring the oxygen content of natural waters. Rapid sampling techniques, simplicity of operation, and rugged structural features were stressed. Cells were designed to operate by either internal electrolysis or external...
Resource Type:: Dissertation

Gas chromatography of metal halides

Creator:: Dennison, James Eugene
Abstract:: An all-glass gas chromatograph was developed for the analysis of corrosive metal halides. Included in the apparatus is a new liquid sampling system designed for fast repetitive sampling of corrosive liquids in an inert atmosphere. A flame photometer detector was developed to permit the detection of corrosive solutes in the...
Resource Type:: Dissertation

The determination of titanium, zirconium and hafnium in molybdenum, niobium and tantalum alloys by ion exchange

Creator:: Shakashiro, Mouaffac Hamdy
Abstract:: New alloys containing refractory metals have been developed by the aero-space industry to meet the demand for thermally resistant materials. The chemical analysis of these alloys has been handled successfully by the use of ion exchange. Hydrofluoric acid, either alone or combined with hydrochloric acid, has here-to-fore been used to...
Resource Type:: Dissertation

Determination of low level hydrocyanic acid in solution using gas-liquid chromatography

Creator:: Schneider, Carl Rudolph
Resource Type:: Dissertation

Controlled potential coulometric and polarographic investigations of metallic ions in fused salts

Creator:: Caton, Roy Dudley
Resource Type:: Dissertation

Null-point determination of fluoride with the bismuth-bismuth fluoride electrode

Creator:: Brower, Harold Edward
Resource Type:: Masters Thesis

Differential spectrophotometric determination of hafnium in the presence of zirconium

Creator:: Johnson, Arnold Richard
Resource Type:: Dissertation

The differential combustion of carbon in cast iron

Creator:: Trammell, David Ross
Resource Type:: Masters Thesis

The nature and stabilities of the fluo-complexes of tantalum

Creator:: Varga, Louis Paul
Resource Type:: Dissertation

A detailed study of the carrier concentration method of analysis of uranium oxide

Creator:: Daniel, J. L. (Jack Leland), 1924-
Resource Type:: Dissertation

Differential spectrophotometric determination of titanium

Creator:: Pakulak, Jack Metro
Resource Type:: Masters Thesis

A spectrophotometric study of niobium (V) in hydrochloric acid solution

Creator:: Kanzelmeyer, James Herbert
Resource Type:: Dissertation

Utilization of potassium cyanide as a spectrophotometric reagent, with particular application to the determination of nickel

Creator:: Soine, Tyler Sylvester
Resource Type:: Masters Thesis

Characterization of chloride complexes of niobium (v.)

Creator:: Ryan, Jack Lewis
Resource Type:: Masters Thesis

Polarographic investigation of niobium and tantalum with special reference to the niobium-phosphate system

Creator:: Clauss, James Kilbourn
Resource Type:: Dissertation

The separation and determination of phosphate by precipitation of zirconium phosphate from homogeneous solution

Creator:: Baird, Stephen Sydney
Resource Type:: Masters Thesis

The colorimetric determination of tantalum with gallic acid

Creator:: Hammill, Kenneth Howard
Resource Type:: Masters Thesis

The separation of aluminum and zirconium by ion exchange

Creator:: Miner, Frend John
Resource Type:: Masters Thesis

The colorimetric determination of niobium with thiocyanate

Creator:: Levitt, Arnold Edward
Resource Type:: Masters Thesis

The separation of zirconium and magnesium by means of ion exchange

Creator:: Lee, Eugene Edward
Resource Type:: Masters Thesis

Determination of magnesium in zirconium based on ion exchange separation and titration with versene

Creator:: Metzler, Richard Kenneth
Abstract:: The Kroll Process for the production of zirconium utilizes the reduction of zirconium tetrachloride with metallic magnesium. Control of the magnesium content of the final zirconium metal is essential, as residual magnesium adversely influences the properties of zirconium. In this thesis a volumetric method has been presented for the determination...
Resource Type:: Masters Thesis

A conductometric investigation of the titration of aqueous zirconium solutions with fluoride

Creator:: Mosen, Arthur Walter
Resource Type:: Masters Thesis

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