Abstract
WE have found that, of the four known isomers of benzene hexachloride, only the gamma is reduced at a dropping mercury electrode. The insecticidal activity of benzene hexachloride is preponderantly due to the gamma-isomer, so that a method of determining the latter is of value in the analysis of benzene hexachloride and insecticidal compositions based on it. This property of the gamma-isomer, which was first discovered by us in 1945, permitted the development of a reliable analytical procedure. Keller et al.1 showed in 1946 that benzene hexachloride gave rise to a polarographic wave, but did not specifically indicate that the wave was due to the gamma-isomer.
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References
Feller et al., Helv. Chim. Ada, 29, 761 (1946).
Slade, Chem, and Ind., 43, 314 (1945).
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INGRAM, G., SOUTHERN, H. Polarographic Determination of the Gamma-Isomer of Benzene Hexachloride. Nature 161, 437–438 (1948). https://doi.org/10.1038/161437a0
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DOI: https://doi.org/10.1038/161437a0
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