Spectrophotometric Determination of Sodium 4-Dodecylbenzenesulfonate with 1-(N-Methylpyridinium-4-yl-azo)-4-(4-diethylaminophenylazo)naphthalene Iodide
- 1 February 1982
- journal article
- research article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 55 (2) , 621-622
- https://doi.org/10.1246/bcsj.55.621
Abstract
A new reagent, 1-(N-methylpyridinium-4-yl-azo)-4-(4-diethylaminophenylazo)naphthalene iodide, can react with sodium 4-dodecylbenzenesulfonate to show a color change in an aqueous phase in the presence of iodide ion. The calibration graph is straight line up to 1.2×10−5 M (1 M=1 mol dm−3); ε=3.25×104 1 mol−1 cm−1 at 580 nm.Keywords
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