III. THE REVERSIBLE ADDITION OF ETHYL ALCOHOL TO PARA-BROMOBENZONITRILE CATALYZED BY SODIUM, POTASSIUM AND LITHIUM ETHYLATES<sup>1</sup>

Myers, C. N.; Acree, S. F.

doi:10.1021/ja01398a009

Cited by 5 publications

(4 citation statements)

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“…Various attempts were made to increase the accuracy of the method by reducing the liquid-junction potential to small values and by the use of cells without liquid junction 19,10,11,12).…”

Section: Dissociation Constants From Cells Without Liquid Junctionmentioning

confidence: 99%

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pH values of certain phosphate-chloride mixtures, and the second dissociation constant of phosphoric acid from 0 degrees to 60 degrees C

Bates¹,

Acree²

1943

J. RES. NATL. BUR. STAN.

186

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“…Various attempts were made to increase the accuracy of the method by reducing the liquid-junction potential to small values and by the use of cells without liquid junction 19,10,11,12).…”

Section: Dissociation Constants From Cells Without Liquid Junctionmentioning

confidence: 99%

“…pK~= (E-EO)/k+log(mH2Po4mct!mHPo4)+2A-J;, (10) where A is a constant for aqueous solutions at a particular temperature. Values of pK; from eq 10 approach the true value of pK2 in .dilute solutions.…”

Section: 3026rt/fmentioning

confidence: 99%

pH values of certain phosphate-chloride mixtures, and the second dissociation constant of phosphoric acid from 0 degrees to 60 degrees C

Bates¹,

Acree²

1943

J. RES. NATL. BUR. STAN.

186

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“…Another possibility that may account for the lack of constancy of the emf [15] is the age of the hydrogen and calomel electrodes. It has been shown [18,19,20,21] that if these electrodes are not sufficiently aged, they will give different potentials in solutions of the same composition. Smith and Taylor [22] have likewise shown that if silver-silver-chloride electrodes are not sufficiently aged, new electrodes will act as cathodes toward aged ones when immersed in a chloride solution and that periods as long as 1 week may be required for attainment of a common potential.…”

Section: Hyd1'ogen Electrodes In Phthalate Solu!tionsmentioning

confidence: 99%

A comparison of platinum and palladium hydrogen-electrodes in aqueous solutions of acid potassium phthalate

Hamer¹,

Acree²

1944

J. RES. NATL. BUR. STAN.

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A study was made of the reproducibility of hyd rogen electrodes of various types and of silver-sHver-chloride electrodes of the thermal-electrolytic type in aqueous solutions of phthalates, in order to learn whether phthalates are reduced to hexahydrophthalic acid and the electromotive force thereby changed. If so, glass electrodes would have to be used to determine the pH valu es of solut ions of phthalates. This type of study is necessary for all reducible materials. E lectromotive-force measurements of the electrode combinations were made for various periods of t ime. The potentials of hydrogen electrodes prepared with platinum sponge under a variety of conditions constantly increased with time !:nd frequently were erratic, whereas those made with palladium sponge under different condit ions remained remarkably constant for periods of 35 hours. Even after 75 hours, the potentials increased only 0.3 mv-which corresponds to an increase of only 0.005 in pH. Palladium or platinum electrodes having the same type of coating but of different ages agreed in potential after 2 hours in phthalate solutions. The ra te and the magnitude of the increase in potential for the platinum electrodes after approximately 2 hours depend mainly upon the thickness of the metallic sponge. The characteristics of the palladium electrodes were practically independent of the thickness of the metallic sponge ; of the current density used in the electrolysis; of the concentration, composition, acidity, and conductance of the plating solution ; and of the concentration, composition, pH, and buffer capacity of the phthalate solutions in which the electrodes were used. The difference in the behavior of platinum and palladium hydrogen-elect rodes may be caused by their different catalytic activity.

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“…Many of the studies in reaction kinetics which led Aeree (263,371,279) to favor the "dual theory" of catalysis were concerned with alkali alkoxides.…”

Section: Catalytic Effectsmentioning

confidence: 99%

Metallic Salts of Alcohols and Alcohol Analogs.

Dermer¹

1934

Chem. Rev.

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III. THE REVERSIBLE ADDITION OF ETHYL ALCOHOL TO PARA-BROMOBENZONITRILE CATALYZED BY SODIUM, POTASSIUM AND LITHIUM ETHYLATES¹

Abstract: The circumstances of the first determination of the isotopes of lead are given.Washington, D. C.

Cited by 5 publications

References 0 publications

pH values of certain phosphate-chloride mixtures, and the second dissociation constant of phosphoric acid from 0 degrees to 60 degrees C

pH values of certain phosphate-chloride mixtures, and the second dissociation constant of phosphoric acid from 0 degrees to 60 degrees C

A comparison of platinum and palladium hydrogen-electrodes in aqueous solutions of acid potassium phthalate

Metallic Salts of Alcohols and Alcohol Analogs.

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III. THE REVERSIBLE ADDITION OF ETHYL ALCOHOL TO PARA-BROMOBENZONITRILE CATALYZED BY SODIUM, POTASSIUM AND LITHIUM ETHYLATES1

Abstract: The circumstances of the first determination of the isotopes of lead are given.Washington, D. C.

Cited by 5 publications

References 0 publications

pH values of certain phosphate-chloride mixtures, and the second dissociation constant of phosphoric acid from 0 degrees to 60 degrees C

pH values of certain phosphate-chloride mixtures, and the second dissociation constant of phosphoric acid from 0 degrees to 60 degrees C

A comparison of platinum and palladium hydrogen-electrodes in aqueous solutions of acid potassium phthalate

Metallic Salts of Alcohols and Alcohol Analogs.

Contact Info

Product

Resources

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III. THE REVERSIBLE ADDITION OF ETHYL ALCOHOL TO PARA-BROMOBENZONITRILE CATALYZED BY SODIUM, POTASSIUM AND LITHIUM ETHYLATES¹