Citation:

KriegmanKing, M. R. AND M. Reinhard. TRANSFORMATION OF CARBON TETRACHLORIDE BY PYRITE IN AQUEOUS SOLUTION. ENVIRONMENTAL SCIENCE & TECHNOLOGY 28:692-700, (1994).

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Description:

The reactivity of Cc₄ with pyrite was investigated by measuring the CC1₄ transformation rates and products under aerobic and anaerobic conditions. Under all reaction conditions, >90% of the CC1₄ was transformed within 12- 36 days in the presence of 1.2-1.4 m²/L pyrite at 25 °C. A zero-order dependence on the CC₄ concentration supports a surface-controlled reaction mechanism wherein the rate of reaction depends on the absorbed CC1₄ concentration. In aerobic systems >70% of the CC1₄ was transformed to C0^{2< whereas in a fresh-ground/anaerobic pyrite system approximately 50% of the CC1₄ was transformed to CHC1₃. X-ray photoelectron spectroscopy of the reacted pyrite showed that an FeOOH coating formed on the surface under aerobic conditions. Under all reaction conditions, the pyrite surface was depleted of ferrous iron.}

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TRANSFORMATION OF CARBON TETRACHLORIDE BY PYRITE IN AQUEOUS SOLUTION  

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Record Details:

Record Type:DOCUMENT( JOURNAL/ PEER REVIEWED JOURNAL)

Product Published Date:04/01/1994

Record Last Revised:04/10/2009

OMB Category:Other

Record ID: 129118

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Access Procedures :EPA ONLY

Document IDs:

EPA Number :EPA/600/J-94/349

NTIS Number : 94-210465