Kinetics of hexachloroiridate(IV) reduction by some aryl alcohols in sodium acetate-acetic acid buffer medium

Abstract Methods are presented in which diethylstilbestrol is extracted from feeds in the Goldfisch apparatus, transferred into alkaline sodium acetate solution to avoid emulsions, and measured colorimetrically in a sodium acetate-acetic acid buffer system. The procedure is rapid, and results agree closely with those obtained by the official method. Procedures are also presented for determination of diethylstilbestrol in molasses and fat mixtures.

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261. The kinetics of chlorohydrin formation. Part II. The reaction between hypochlorous acid and allyl alcohol in the presence of sodium acetate–acetic acid buffers of constant ph

Journal of the Chemical Society (Resumed) ◽

10.1039/jr9500001286 ◽

1950 ◽

Vol 0 (0) ◽

pp. 1286-1289 ◽

Cited By ~ 4

Author(s):

G. C. Israel

Keyword(s):

Acetic Acid ◽

Allyl Alcohol ◽

Sodium Acetate ◽

Hypochlorous Acid ◽

Constant Ph ◽

Kinetics Of

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pH Measurement Problems Affecting Assay of Carcinoembryonic Antigen

Clinical Chemistry ◽

10.1093/clinchem/21.2.255 ◽

1975 ◽

Vol 21 (2) ◽

pp. 255-257 ◽

Cited By ~ 4

Author(s):

Jack H Ladenson ◽

C Elliott Bell

Keyword(s):

Acetic Acid ◽

Carcinoembryonic Antigen ◽

Ammonium Acetate ◽

Electrode System ◽

Acid Buffer ◽

Ph Values ◽

Blood Ph ◽

Acetic Acid Buffer ◽

Ph Electrodes ◽

Commercial Kit

Abstract Measurement with combination pH electrodes of the pH of the dilute buffers used in a commercial kit (CEA-Roche) for assay of carcinoembryonic antigen resulted in pH values 0.1 to 0.3 unit lower than pH values measured on an electrode system with a capillary junction. If the pH values of these buffers were adjusted, based on such measurements, an error in the assay of 0.2 to 0.6 ng/ml in the 1.5-3.0 ng/ml range would result. We recommend that the pH of dialyzed samples and of the working ethylenediaminetetraacetate and ammonium acetate-acetic acid buffers be monitored with pH electrodes that have a capillary junction between sample and saturated KCl, as is true of most blood-pH instruments. We also recommend use of a 1 mol/liter rather than 2.5 mol/liter stock ammonium acetate-acetic acid buffer, because of the closer similarity of the pH of buffers at this molarity to those at 0.01 mol/liter.

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Equilibria between Palladium(II) Acetate and Olefins in Acetic Acid containing Sodium Acetate

Canadian Journal of Chemistry ◽

10.1139/v75-255 ◽

1975 ◽

Vol 53 (12) ◽

pp. 1833-1841 ◽

Cited By ~ 21

Author(s):

Raj N. Pandey ◽

Patrick M. Henry

Keyword(s):

Acetic Acid ◽

Sodium Acetate ◽

Solution Composition ◽

Kinetics Of Oxidation ◽

Complex Equilibria ◽

Π Complex ◽

Allylic Esters ◽

Kinetics Of

π-Complex equilibria between dimeric Pd(II) acetate and various olefins (ethylene, styrene, 3,3-dimethyl-1-butene, vinylic and allylic esters) in acetic acid solvent have been investigated by spectral means. The results indicate two π-complexes are formed. The first π-complex, which is formed rapidly, is a dimeric π-complex (ol = olefin ).[Formula: see text]The Benesi–Hildebrand plots for these complexes are linear for all olefins and thus values of Kπ22 can be readily evaluated. The values of the equilibrium coefficient, Kπ22, do not change with solution composition or [NaOAc]. The second π-complex is formed slowly. The data are consistent only with the equilibrium[Formula: see text]The data are inconsistent with the equilibrium[Formula: see text]which is analogous to that reported for the Na2Pd2Cl6 reaction with olefins in acetic acid. Furthermore, previous assumptions as to the equilibria between ethylene and Pd(II) in the all-acetate system have proved incorrect, and so the kinetics of oxidation of ethylene in this system must be reinterpreted in view of the present results.

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