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Corrosion Studies of Various Heavy‐Metal Fluoride Glasses in Liquid Water: Application to Fluoride‐Ion‐Selective Electrode
Author(s) -
RAVAINE DENIS,
PERERA GUNARATHNA
Publication year - 1986
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1986.tb07383.x
Subject(s) - fluoride , dissolution , inorganic chemistry , corrosion , ion , chemistry , metal , leaching (pedology) , electrode , ion selective electrode , metal ions in aqueous solution , membrane , ion exchange , selectivity , catalysis , biochemistry , environmental science , organic chemistry , soil science , soil water
The leaching rates of various heavy‐metal fluoride (HMF) glasses have been investigated in pH‐buffered solutions. Measurements of weight losses and fluoride‐ion and heavy‐metal concentrations in solution have been performed. The agreement between the different experimental methods suggests a congruent dissolution although different time dependencies are observed between the investigated glasses. Their use as a membrane in a test fluoride‐ion‐selective electrode (fluoride‐ISE) clearly demonstrates the existence of anion exchange between F – ions on the glass surface and OH – ions in the water solution.