Abstract
IT has been noted1 that cetyl-trimethyl-ammonium bromide is a collector for (that is, induces floatability of) several different types of mineral. The minimum effective concentration of the compound (threshold concentration) required to induce flotation differs from mineral to mineral, but when the concentration has been increased to a value lying between 100 mgm. and 500 mgm. a litre, flotation ceases to be possible for all minerals. This is about the concentration (280 mgm. a litre) at which micelle formation of the ammonium salt becomes considerable2.
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References
Wark, I. W., J. Phys. Chem., 40, 661 (1936).
Adam, N. K., and Shute, H. L., Trans. Farad. Soc., 34, 759 (1938).
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WARK, E., WARK, I. Influence of Micelle Formation on Flotation. Nature 143, 856–857 (1939). https://doi.org/10.1038/143856b0
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DOI: https://doi.org/10.1038/143856b0
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