The Determination of Fluorine in Glass by the Lead Chloro-fluoride: Method-Application to Silicate Glasses of High Alumina and High Boric Oxide Content

JSGT 1954 V38 T277-T284

It was required to determine fluorine in the range 0·5–2% in experimental silicate glasses containing major amounts of alumina and boric oxide. Two methods, which have been used successfully with other types of glass, were found to give incomplete recovery of fluorine. The method finally adopted was a modification of the lead chlorofluoride method of Hoffman & Lundell. The modifications introduced rendered the method more suitable for small fluorine contents and overcame the errors arising from co-precipitation of other lead salts with the lead chlorofluoride.

P. M. C. Proffitt, Jean E. Hansen & H. J. Cluley