STP1062

    Determination of Extractable Organic Halides in Soils and Oily Wastes by Pyrolysis/Microcoulometric Titration

    Published: Jan 1990


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    Abstract

    Two pyrolysis/microcoulometric titration methods for the determination of extractable organic halides in soils and oily waste are described. The first method involves the washing of soil sample in a column packed with granular activated carbon with a dilute nitrate solution to remove interfering inorganic halides. The organic halides are subsequently determined by pyrolysis/microcoulometric titration of the sample soil-activated carbon mixture. The second method involves the extraction of soil or oily waste samples with a mixture of octanol and 1 M sulfuric acid. The organic halides are extracted into the octanol phase and then analyzed by pyrolysis/microcoulometry. The inorganic halides are removed by extraction into the aqueous phase. The second method has the advantage of extending the technique to the analysis of a broader spectrum of organic halides including polar compounds such as chloroacetic acid

    Keywords:

    extractable organic halide, carbon adsorption, solvent extraction, soil, oily waste, pyrolysis, microcoulometnc titration


    Author Information:

    Lieu, VT
    Professor of Chemistrygraduate student, California State UniversityUniversity of California, Long BeachIrvine, Ca.Ca.

    Woo, VH
    Professor of Chemistrygraduate student, California State UniversityUniversity of California, Long BeachIrvine, Ca.Ca.


    Paper ID: STP18971S

    Committee/Subcommittee: D34.02

    DOI: 10.1520/STP18971S


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