Kinetics and mechanism of reductive dehalogenation of carbon tetrachloride using zero-valence metals

Kara D. Warren; Robert G. Arnold; Tammie L. Bishop; Larson C. Lindholm; Eric A. Betterton

doi:10.1016/0304-3894(94)00117-Y

Kinetics and mechanism of reductive dehalogenation of carbon tetrachloride using zero-valence metals

Kara D. Warren, Robert G. Arnold, Tammie L. Bishop, Larson C. Lindholm, Eric A. Betterton

Institute of Atmospheric Physics

Research output: Contribution to journal › Article › peer-review

90 Scopus citations

Abstract

Elemental iron and zinc reduced part-per-thousand levels of aqueous-phase carbon tetrachloride to chloroform in a few hours. Free metal ions, chloride ion and hydrogen gas were produced in the reaction; protons were consumed. Process kinetics were dependent on solution pH, surface area of the elemental metal, carbon tetrachloride concentration, buffer selection and solvent composition (volume fraction 2-propanol). Reaction rate was first-order with respect to carbon tetrachloride at concentrations less than 7.5 mM. This class of reactions offers promise as a means for initiating the destruction of heavily halogenated organic compounds.

Original language	English (US)
Pages (from-to)	217-227
Number of pages	11
Journal	Journal of Hazardous Materials
Volume	41
Issue number	2-3
DOIs	https://doi.org/10.1016/0304-3894(94)00117-Y
State	Published - May 1995

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution
Health, Toxicology and Mutagenesis

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10.1016/0304-3894(94)00117-Y

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title = "Kinetics and mechanism of reductive dehalogenation of carbon tetrachloride using zero-valence metals",

abstract = "Elemental iron and zinc reduced part-per-thousand levels of aqueous-phase carbon tetrachloride to chloroform in a few hours. Free metal ions, chloride ion and hydrogen gas were produced in the reaction; protons were consumed. Process kinetics were dependent on solution pH, surface area of the elemental metal, carbon tetrachloride concentration, buffer selection and solvent composition (volume fraction 2-propanol). Reaction rate was first-order with respect to carbon tetrachloride at concentrations less than 7.5 mM. This class of reactions offers promise as a means for initiating the destruction of heavily halogenated organic compounds.",

author = "Warren, {Kara D.} and Arnold, {Robert G.} and Bishop, {Tammie L.} and Lindholm, {Larson C.} and Betterton, {Eric A.}",

note = "Funding Information: Support for this research was provided by NIEHS Superfund Basic Research Program.",

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T1 - Kinetics and mechanism of reductive dehalogenation of carbon tetrachloride using zero-valence metals

AU - Warren, Kara D.

AU - Arnold, Robert G.

AU - Bishop, Tammie L.

AU - Lindholm, Larson C.

AU - Betterton, Eric A.

N1 - Funding Information: Support for this research was provided by NIEHS Superfund Basic Research Program.

PY - 1995/5

Y1 - 1995/5

N2 - Elemental iron and zinc reduced part-per-thousand levels of aqueous-phase carbon tetrachloride to chloroform in a few hours. Free metal ions, chloride ion and hydrogen gas were produced in the reaction; protons were consumed. Process kinetics were dependent on solution pH, surface area of the elemental metal, carbon tetrachloride concentration, buffer selection and solvent composition (volume fraction 2-propanol). Reaction rate was first-order with respect to carbon tetrachloride at concentrations less than 7.5 mM. This class of reactions offers promise as a means for initiating the destruction of heavily halogenated organic compounds.

AB - Elemental iron and zinc reduced part-per-thousand levels of aqueous-phase carbon tetrachloride to chloroform in a few hours. Free metal ions, chloride ion and hydrogen gas were produced in the reaction; protons were consumed. Process kinetics were dependent on solution pH, surface area of the elemental metal, carbon tetrachloride concentration, buffer selection and solvent composition (volume fraction 2-propanol). Reaction rate was first-order with respect to carbon tetrachloride at concentrations less than 7.5 mM. This class of reactions offers promise as a means for initiating the destruction of heavily halogenated organic compounds.

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ER -

Kinetics and mechanism of reductive dehalogenation of carbon tetrachloride using zero-valence metals

Abstract

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