منابع مشابه
Diagnostics of inductively coupled chlorine plasmas : Measurement of Cl 2 ¿ and Cl ¿ densities
The absolute densities of positive ions ~Cl2 1 and Cl! are obtained over a 2–20 mTorr pressure range and 5–1000 W input radio-frequency rf power range in a transformer-coupled Cl2 plasma. The relative number density of Cl2 1 is measured by laser-induced fluorescence. These laser-induced fluorescence data are calibrated by Langmuir-probe measurements of total positive-ion density at low powers t...
متن کاملThe Reduction of Chlorine ! on Carbon In
Using a rotating vitreous carbon disk electrode, the kinetic parameters for chlorine reduction in an AlCl3 KCl-NaC1 (57.5-12.5-30 mol g%) melt were determined. It was found that the reduction of chlorine occurs according to the paths: C1 2 + e C1 + Clad s ads with the first step being most probably rate determining. The apparent exchange currents were (1 ± 0.15)10 -4A/cm 2 at 130 °C and (2.1 ± ...
متن کاملChlorine isotope effects from isotope ratio mass spectrometry suggest intramolecular C-Cl bond competition in trichloroethene (TCE) reductive dehalogenation.
Chlorinated ethenes are prevalent groundwater contaminants. To better constrain (bio)chemical reaction mechanisms of reductive dechlorination, the position-specificity of reductive trichloroethene (TCE) dehalogenation was investigated. Selective biotransformation reactions (i) of tetrachloroethene (PCE) to TCE in cultures of Desulfitobacterium sp. strain Viet1; and (ii) of TCE to cis-1,2-dichlo...
متن کاملC and Cl isotope fractionation of 1,2-dichloroethane displays unique δ¹³C/δ³⁷Cl patterns for pathway identification and reveals surprising C-Cl bond involvement in microbial oxidation.
This study investigates dual element isotope fractionation during aerobic biodegradation of 1,2-dichloroethane (1,2-DCA) via oxidative cleavage of a C-H bond (Pseudomonas sp. strain DCA1) versus C-Cl bond cleavage by S(N)2 reaction (Xanthobacter autotrophicus GJ10 and Ancylobacter aquaticus AD20). Compound-specific chlorine isotope analysis of 1,2-DCA was performed for the first time, and isoto...
متن کاملCarbon–Chlorine Bond Dissociation on the Pd(111) Surface
Dissociation of the C–Cl bonds in straight chain alkyl chlorides (CH3(CH2)nCl, n= 0–5) adsorbed on the Pd(111) surface has been investigated using temperature programmed desorption (TPD) and X-ray photoemission spectroscopy (XPS). Short chain alkyl chlorides adsorbed on the Pd(111) surface at low temperatures desorb during heating because the intrinsic activation energy for C–Cl bond cleavage (...
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ژورنال
عنوان ژورنال: Journal of Phase Equilibria and Diffusion
سال: 2010
ISSN: 1547-7037,1863-7345
DOI: 10.1007/s11669-010-9761-1