A technique for the measurement of diffusion coefficients in molten salts

Charles Angell, J. O M Bockris

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A diffusion method is described in which two columns of molten salt to be interdiffused, initially separated by a gas bubble at reduced pressure, are joined by breaking a capillary and allowing external pressure to eliminate the bubble. After a period of diffusion, the salt distribution is preserved by causing the glass diffusion tube to break at the point of initial junction while the tube is still in position in the high temperature zone of the furnace. The method has been tested with a 1: 1 CdCl2-KCl mixture. The self-diffusion coefficient of cadmium is found to be 1.40 cm. 2sec-1 at 470° C, with a probable error of 2.5%. The method is applicable up to temperatures of the order of 1000° C.

Original languageEnglish (US)
Article number308
Pages (from-to)458-461
Number of pages4
JournalJournal of Scientific Instruments
Volume35
Issue number12
DOIs
StatePublished - 1958
Externally publishedYes

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molten salts
Molten materials
diffusion coefficient
Salts
bubbles
tubes
Pressure
Cadmium Chloride
cadmium
Temperature
furnaces
Cadmium
salts
Glass
Furnaces
glass
Gases
gases
temperature

ASJC Scopus subject areas

  • Engineering(all)
  • Instrumentation

Cite this

A technique for the measurement of diffusion coefficients in molten salts. / Angell, Charles; Bockris, J. O M.

In: Journal of Scientific Instruments, Vol. 35, No. 12, 308, 1958, p. 458-461.

Research output: Contribution to journalArticle

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