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Quantitative Analysis of α,α,α,2,4-Pentachlorotoluene and α,α,α,2,5-Pentachlorotoluene Mixtures by Carbon-13 Fourier Transform Nuclear Magnetic Resonance Spectrometry

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Extensive chlorination of aromatic substrates invariably leads to a gross mixture of positional isomers. Structural and compositional analysis of these isomeric mixtures can be quite challenging in view of the similar physical characteristics of some isomers, their heat sensitivity or nonvolatility. We have had extensive success in employing carbon-13 Fourier transform nuclear magnetic resonance (FT NMR) spectrometry to analyze such isomeric mixtures and wish to report our approach, especially the necessary precautions.

Keywords: Analysis, for pentachlorotoluenes; Nuclear magnetic resonance

Document Type: Short Communication


Affiliations: Hooker Chemicals and Plastics Corporation, Research Center, Grand Island Complex, MPO Box 8, Niagara Falls, New York 14302

Publication date: January 1, 1980

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