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Radiometric Determination of SO(2)

IP.com Disclosure Number: IPCOM000097202D
Original Publication Date: 1962-Jul-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Fatzer, GD: AUTHOR [+2]

Abstract

Monitoring the chemical processes which are accompanied by a side reaction in which SO(2) is evolved can be effected with great accuracy and without a need for introducing radioactivity into the main chemical process.

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Radiometric Determination of SO(2)

Monitoring the chemical processes which are accompanied by a side reaction in which SO(2) is evolved can be effected with great accuracy and without a need for introducing radioactivity into the main chemical process.

Many industrial processes involving chemical reactions are accompanied by the evolution of SO(2). In this monitoring technique, radiometric analysis can be relied upon to detect and measure the SO(2) evolved during the process. Thus, main industrial process is monitored without introducing radioactivity into the main process.

The technique consists of reacting the evolved SO(2) in a secondary vessel with a radioactive reagent such as barium hydroxide. Such produces radioactive barium sulfite as a precipitate which is then filtered and collected for measurement of radioactivity. The radioactive measurement is indicative of sulphur dioxide concentration. This is because the radioactivity of the precipitate is directly proportional to its mass and thus to the sulphur dioxide present.

The technique can be applied in electrodeposition processes in which sulphur bearing compounds are utilized as additives, e. g., the use of KCNS in a bath for the deposition of nickel-cobalt alloys.

The radiometric determination is made on the SO(2) yielded as a result of the bath depletion in KCNS as a function of time. SO(2) radiometric monitoring thus permits the calculation of the process controlling variable CNS ion concentration and...