Thermal decomposition of 1,1,1-trichloroethane and 1,1-dichloroethene over high surface area alumina
| Autor: | J.T. Yates, T.H. Ballinger, R.S. Smith, S.D. Colson |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Reaction mechanism
X-ray spectroscopy Thermal decomposition Analytical chemistry Infrared spectroscopy Surfaces and Interfaces Atmospheric temperature range Condensed Matter Physics Decomposition 1 1-Dichloroethene chemistry.chemical_compound chemistry Electrochemistry Organic chemistry General Materials Science Aliphatic compound Spectroscopy |
| Zdroj: | Langmuir. 8:2473-2478 |
| ISSN: | 1520-5827 0743-7463 |
| DOI: | 10.1021/la00046a020 |
| Popis: | Mass spectrometry and X-ray photoelectron spectroscopy have been used to study the decomposition of 1,1,1-trichloroethane (CH[sub 3]CCl[sub 3]) over high surface area [gamma]-alumina (Al[sub 2]O[sub 3]) in the temperature range 300-1000 K under flow conditions. The dehydrochlorination of CH[sub 3]CCl[sub 3](g) occurs in the temperature range 400-600 K to form 1,1-dichloroethene(g) CH[sub 2]=CCl[sub 2](g) and HCl(g). Above 700 K the CH[sub 2]=CCl[sub 2](g) decomposes to form HCl(g), and carbon was deposited on the Al[sub 2]O[sub 3] surface. No evidence for the production of chloroacetylene or other major gas phase products from CH[sub 2]=CCl[sub 2] was found, indicating that CH[sub 3]CCl[sub 3] dehydrochlorination to adsorbed C and HCl(g) involves a single gas phase intermediate, CH[sub 2]=CCl[sub 2]. 29 refs., 7 figs., 1 tab. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|