Determination of Ferrocyanide Ion by Means of Luteocobaltammine Chloride

Hynes, Walter A.; Malko, Michael G.; Yanowski, Leo K.

doi:10.1021/ac50103a018

Cited by 6 publications

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References 15 publications

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“…With pyrophosphate, a ratio of hexamminecobaltic ion to pyrophosphate ion of 4 to 3 is obtained in the presence of potassium salts and the absence HEXAMMINECOBALT(III) ion has been found useful as a quantitative precipitant for several anions. Hynes, Malko, and Yanoxvski (6) determined ferrocyanide by precipitation of [Co(NH3)e]4[Fe(CN)els.H20. The precipitate was found to be unstable at 100°C.…”

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confidence: 99%

Amperometric Titrations with Hexamminecobalt(III) Chloride

Laitinen¹,

Burdett²

1951

Anal. Chem.

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The one-tube preamplifier, or cathode follower described by Jordan and Bell (5) was found satisfactory, although frequent replacement of electron tube 6AK5 seemed necessary. A f'entralab ceramic condenser with a 5000-volt rating was used for decoupling.Amplifier. The Atomic Instrument Co.'s Model 204A is considered excellent in this application. From the various outputs it was possible, simultaneously, to count pulses, to view them on an oscillograph, and to monitor them with a counting rate meter. A discriminator, which is essential in neutron counting, is a part of this amplifier. It was used to determine the optimum gain or pulse discrimination level for obtaining reproducible results.Scaler. A conventional Higinbotham scaler was used, with a scale of 64 or 512 according to the counting rate. A DuMont Type 248A oscillograph with triggered sweep of various durations was exceedingly helpful throughout the work.

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confidence: 99%