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A colorimetric method for the estimation of 2:2-bis-(p-chloro-phenyl)-1:1:1-trichloroethane (DDT)

✍ Scribed by Bradbury, F. R. ;Higgons, D. J. ;Stoneman, J. P.

Publisher: Wiley (John Wiley & Sons)
Year: 1947
Weight: 472 KB
Volume: 66
Category: Article
ISSN: 0368-4075
DOI: 10.1002/jctb.5000660301

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✦ Synopsis

Abstract

2:2‐Bis‐(p‐chlorophenyl)‐1:1:1‐trichlorocthanc reacts with hydroquinone and concentrated sulphuric acid at 100° to produce a wine‐red colour. The reaction has been studied and developed into a quantitative analytical method for the determination of DDT. The reaction is sufficiently specific to permit the determination of the purity of commercial samples of DDT with an accuracy of ± 1%.

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