Determination of carbon on non-conducting catalysts by induction heating-conductometric method

A conductometric method is described for the determination of rates of solvolyses in nonaqueous media with an accuracy of better than ± 0.5% in k. The heat of activation derived from the results so obtained is shown to have a temperature coefficient (ΔCp‡) of −21 cal./mole deg.

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Thermal Diffusion of Weak Electrolytes III. The Soret Coefficients of Normal Carboxylic Acids

Zeitschrift für Physikalische Chemie ◽

10.1524/zpch.2000.214.1.055 ◽

2000 ◽

Vol 214 (1) ◽

Cited By ~ 1

Author(s):

L. Domonkos ◽

J. Liszi

Keyword(s):

Formic Acid ◽

Aqueous Solutions ◽

Carboxylic Acids ◽

Thermal Diffusion ◽

Soret Coefficient ◽

Conductometric Method ◽

New Model ◽

Weak Electrolytes

A conductometric method is described and applied for the determination of the Soret coefficient of normal carboxylic acids in aqueous solutions in order to check a new model described in our previous papers. The Soret cell originally developed by Agar and Turner was applied with only minor modifications. The results show that the deviations between the measured and calculated Soret coefficients are lower than 2.5% except for formic acid (33% in average).

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Determination of Sulfur in Volatile Hydrocarbon Mixtures by Lamp-Conductometric Method

Analytical Chemistry ◽

10.1021/ac60098a027 ◽

1955 ◽

Vol 27 (2) ◽

pp. 274-277 ◽

Cited By ~ 4

Author(s):

E. R. Quiram

Keyword(s):

Hydrocarbon Mixtures ◽

Conductometric Method ◽

Volatile Hydrocarbon

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Conductometric determination of sulfur in beryllium oxide ceramics using induction heating and peroxide absorption

Analytical Chemistry ◽

10.1021/ac60257a010 ◽

1968 ◽

Vol 40 (1) ◽

pp. 202-204 ◽

Cited By ~ 1

Author(s):

James F. Chapman ◽

Malcolm. Thackray

Keyword(s):

Induction Heating ◽

Beryllium Oxide ◽

Oxide Ceramics

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Surface Heat Treatment Design Methodology of Large-Scale Castings

Materials Science Forum ◽

10.4028/www.scientific.net/msf.513.61 ◽

2006 ◽

Vol 513 ◽

pp. 61-68

Author(s):

P. Kula ◽

T. Liskiewicz ◽

T. Pacyniak

Keyword(s):

Heat Treatment ◽

Induction Heating ◽

Design Methodology ◽

Large Scale ◽

Chemical Properties ◽

Surface Heat ◽

Heating And Cooling ◽

Reliable Design ◽

Forced Cooling

The process of induction heating followed by forced cooling of large-scale castings is considered. The main goal of this study is to develop a reliable design methodology of surface heat treatment process to provide high quality of the treated component. It is assured by determination of the material constants and convection coefficient during heating and cooling experiments carried out on the specimens made of material adequate to the considered large-scale casting. The main part of the investigations was preceded by wide analyses of the mechanical and chemical properties of the tested specimens. The presented global design methodology of large-scale castings gives a possibility to predict the temperature distribution on the hardened surface during induction heating and forced cooling. This allows to select the most adequate parameters and apply them in a real specific process. The obtained results have been analyzed and discussed.

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