The determination of the number of electrons involved in irreversible reductions by microcoulometry

Reynolds, G. F.; Shalgosky, H.I.

doi:10.1016/s0003-2670(00)89678-6

Cited by 19 publications

(5 citation statements)

References 9 publications

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“…Since these values were not in agreement and since nitrosoguanidine decomposes rather rapidly in aqueous solutions, a direct and rapid method for the determination of n was thought desirable. With the direct and rapid method for n-values (millicoulometric) that was recently investigated and modified in these laboratories (26,27), an n-value of 5 was obtained for nitroguanidine in a Clark and Luhs' buffer solution of pH 10 where one well-defined wave occurred. Nitroguanidine in a Clark and Lubs' buffer solution of n-value of 3.…”

Section: Resultsmentioning

confidence: 99%

“…It is known that in strong acid solutions nitroguanidine is reduced directly to aminoguanidine (3,32). In 6N hydrochloric acid solutions an n-value of 6 was obtained for nitroguanidine by the millicoulometric technique (26). However, in neutral and alkaline solutions the reduction mechanism appears to be complicated and n-values are of little help in elucidating the over-all process.…”

Section: Resultsmentioning

confidence: 99%

“…Since nitrosoguanidine decomposes in aqueous solutions (25), a more rapid method of determining its diffusion coefficient and n-value was needed. A millicoulometric method reported by Reynolds (26), and recently modified in this laboratory (27), was employed. In this method the polarograph served as a coulometer and a source of constant applied potential.…”

Section: Diffusion Coefficient and N-value Measurementsmentioning

confidence: 99%

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Polarographic Behavior of Nitro and Nitrosoguanidine

Whitnack¹,

Gantz

1959

J. Electrochem. Soc.

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The general behavior of nitro and nitrosoguanidine at the dropping mercury electrode has been studied under various alkaline, neutral, and acidic conditions. Different mechanisms of reduction are postulated and discussed. Optimum conditions are specified, with other details, both for the determination of the nitroso compound in the presence of the nitro compound, and for the reduction of the nitro compound to either the amino or nitroso compound. Half‐wave potentials, diffusion current constants, and n‐values are reported for each compound in several media. The multiple waves obtained with these compounds at some pH values are discussed in terms of different ionic and molecular forms in solution.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Diffusion Coefficient and N-value Measurementsmentioning

confidence: 99%

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Polarographic Behavior of Nitro and Nitrosoguanidine

Whitnack¹,

Gantz

1959

J. Electrochem. Soc.

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“…At the end of the electrolysis the solution wras stirred to remove differences in concentration caused by depletion of the solution near the microelectrode and the change in concentration was measured by determining the final diffusion current. The same technique was used by Reynolds and Shalgosky (230), who studied the method as applied to a variety of systems.…”

Section: Methodology Millicoulometrymentioning

confidence: 99%

Polarographic Theory, Instrumentation, and Methodology

Hume¹

1956

Anal. Chem.

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“…This separation should be useful also for the determination of boron in other materials. Polarographic methods for determining manganese, copper, chromium, iron, lead, and cadmium in calcium metal were reported by Reynolds and coworkers (150,151).…”

Section: Niobium and Tantalummentioning

confidence: 99%