The Partial Molal Heat of Dilution of Sulfuric Acid from Electromotive Force Measurements1

1934 ◽  
Vol 56 (11) ◽  
pp. 2345-2347 ◽  
Author(s):  
Irving A. Cowperthwaite ◽  
Joseph Shrawder
Keyword(s):  
Sulfuric Acid ◽  
Electromotive Force ◽  
Heat Of Dilution

Activity Coefficients of Sulfuric Acid in Anhydrous Ethyl Alcohol from Electromotive Force Data

1935 ◽  
Vol 57 (12) ◽  
pp. 2542-2544
Author(s):  
A. W. Scholl ◽  
A. Witt Hutchison ◽  
G. C. Chandlee
Keyword(s):  
Sulfuric Acid ◽  
Activity Coefficients ◽  
Ethyl Alcohol ◽  
Electromotive Force ◽  
Anhydrous Ethyl Alcohol ◽  
Force Data

Nitration of Benzene as Method for Determining Nitrites and Nitrates in Meat and Meat Products

1977 ◽  
Vol 60 (5) ◽  
pp. 1137-1141
Author(s):  
Weh S Wu ◽  
Peter W Saschenbrecker
Keyword(s):  
Liquid Chromatography ◽  
Sulfuric Acid ◽  
Electron Capture ◽  
Potential Application ◽  
Meat Products ◽  
Peak Height ◽  
Electron Capture Detection ◽  
Gas Liquid Chromatography ◽  
Heat Of Dilution ◽  
Permanganate Oxidation

Abstract Nitrites and nitrates in meat and meat products are determined by nitration of benzene in the presence of sulfuric acid. Nitrites are converted to nitrates by permanganate oxidation prior to nitration. The heat of dilution originating from the sulfuric acid is sufficient to complete the reaction. The final product, nitrobenzene, is determined by gas-liquid chromatography and electron capture detection. Peak height quantitation is both accurate and reproducible. Interferences from impurities are rarely encountered, and may be differentiated easily. The method also has potential application to samples other than meat.

The Thermodynamics of Aqueous 2-Propanol—Sulfuric Acid Solutions from Electromotive Force Measurements1

1953 ◽  
Vol 75 (9) ◽  
pp. 2202-2204
Author(s):  
William N. Whitten ◽  
James E. Land
Keyword(s):  
Sulfuric Acid ◽  
Electromotive Force ◽  
Acid Solutions ◽  
Sulfuric Acid Solutions

The Thermodynamics of Aqueous Sulfuric Acid Solutions from Electromotive Force Measurements1

1935 ◽  
Vol 57 (1) ◽  
pp. 27-33 ◽  
Author(s):  
Herbert S. Harned ◽  
Walter J. Hamer
Keyword(s):  
Sulfuric Acid ◽  
Electromotive Force ◽  
Acid Solutions ◽  
Aqueous Sulfuric Acid ◽  
Sulfuric Acid Solutions

Preparation of Thin Cadmium Telluride Samples for Electron Microscope Studies

1974 ◽  
Vol 32 ◽  
pp. 548-549
Author(s):  
T. J. Magee ◽  
J. Peng ◽  
J. Bean
Keyword(s):  
Electron Microscope ◽  
Sulfuric Acid ◽  
Solid State ◽  
Sample Preparation ◽  
Cadmium Telluride ◽  
Potassium Dichromate ◽  
Optical Components ◽  
The Past ◽  
Solid State Devices

Cadmium telluride has become increasingly important in a number of technological applications, particularly in the area of laser-optical components and solid state devices, Microstructural characterizations of the material have in the past been somewhat limited because of the lack of suitable sample preparation and thinning techniques. Utilizing a modified jet thinning apparatus and a potassium dichromate-sulfuric acid thinning solution, a procedure has now been developed for obtaining thin contamination-free samples for TEM examination.

Physical, Chemical, and Crystallographic Characterization of Anodic Coatings on High Strength Aluminum Base Alloys

1976 ◽  
Vol 34 ◽  
pp. 636-637
Author(s):  
R. E. Herfert ◽  
N. T. McDevitt
Keyword(s):  
Sulfuric Acid ◽  
Salt Spray ◽  
High Strength ◽  
Environmental Stability ◽  
Anodic Films ◽  
Sodium Dichromate ◽  
Corrosion Resistant ◽  
Aerospace Applications ◽  
Bond Strengths ◽  
Adhesive Bonded Joints

Durability of adhesive bonded joints in moisture and salt spray environments is essential to USAF aircraft. Structural bonding technology for aerospace applications has depended for many years on the preparation of aluminum surfaces by a sulfuric acid/sodium dichromate (FPL etch) treatment. Recently, specific thin film anodizing techniques, phosphoric acid, and chromic acid anodizing have been developed which not only provide good initial bond strengths but vastly improved environmental durability. These thin anodic films are in contrast to the commonly used thick anodic films such as the sulfuric acid or "hard" sulfuric acid anodic films which are highly corrosion resistant in themselves, but which do not provide good initial bond strengths, particularly in low temperature peel.The objective of this study was to determine the characteristics of anodic films on aluminum alloys that make them corrosion resistant. The chemical composition, physical morphology and structure, and mechanical properties of the thin oxide films were to be defined and correlated with the environmental stability of these surfaces in humidity and salt spray. It is anticipated that anodic film characteristics and corrosion resistance will vary with the anodizing processing conditions.

Avoidable Waste in the Production of Sulfuric Acid by the Chamber Process

1918 ◽  
Vol 10 (2) ◽  
pp. 156-156
Author(s):  
A Marshall
Keyword(s):  
Sulfuric Acid

Sulfuric acid

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