00000nam 2200000za 4500 9.841552 CaOODSP 20221107152121 cr ||||||||||| 170811s1972 onc ob f000 0 eng d CaOODSP eng eng fre n-cn--- M34-20/151E-PDF M34-20/151 Guest, R. J. The use of flame procedures for the analysis of minerals, ores, and electric furnace slags. Part III, Determination of silicon in ores and their mixtures, and in electric furnace slags [electronic resource] / R.J. Guest and D.R. Macpherson, Extraction Metallurgy Division. Ottawa : Information Canada, 1972. iv, 23 p. Technical bulletin ; TB 151 Cover title. "September 1972." Digitized edition from print [produced by Natural Resources Canada]. Includes bibliographical references. “Rapid procedures, suitable for control and many other purposes, are described for the determination of silicon in electric furnace slags and associated materials and in ores and their mixtures. After sample dissolution by hydrofluoric acid in a Teflon bomb or after a sodium peroxide fusion and subsequent acidification, silicon is determined by an atomic absorption procedure. Other elements may be determined on the same solution as the silicon because no chemical separations have been made. Atomic absorption and chemical results are compared, and the precision found for the atomic absorption procedures is shown. The effectiveness of two atomizer-burner systems is compared and it is shown to be necessary, in one of these systems, to add a major contaminant to the comparison standard in order to obtain suitable accuracy"--Summary, p. i. Includes summary in French. gccst Minerals gccst Metals gccst Analysis Macpherson, D. R. Canada. Natural Resources Canada. Canada. Mines Branch. Technical bulletin (Canada. Dept. of Energy, Mines and Resources. Mines Branch) TB 151 (CaOODSP)9.834857 PDF 1.15 MB https://publications.gc.ca/collections/collection_2017/rncan-nrcan/M34-20/M34-20-151-eng.pdf 300035