Chemical Analsis Of Soda Lime Silica Glasses For Trace Quantities Of Several Colorants

Methods for the analysis of soda lime silica glasses for trace amounts of Cr2O3, CoO,NiO,CuO and selenium are described; the determination of sulphide sulphur in amber glass bottles is also described. The applicable range of these methods is as follows: for Cr2O, 2 to 600ugm; for CuO, 5 to 80ugm; for CoO, 2 to 20ugm; for NiO 5 to 100ugm; for selenium 5ugm (approximate minimum); for sulphide sulphur, 0.005 to 0.10%