Atmospheric degradation mechanisms of organic sulphur compounds / by Cecilia Arsene. 2001
Inhalt
- Chapter 1
- Introduction
- 1.1 Sulphur-containing compounds in the atmosphere
- 1.2 Dimethyl sulphide in the atmosphere
- 1.2.1 Sources and sinks of dimethyl sulphide in the atmosphere
- 1.2.2 Chemical transformation of dimethyl sulphide: State of art
- 1.2.3 Aerosol forming potential of dimethyl sulphide
- 1.3 Aims of the present work
- Chapter 2
- Chapter 3
- Product study of the photo-oxidation of dimethyl sulphide in NOx free systems
- 3.1 Results
- 3.1.1 FT-IR analysis of stable products
- 3.1.2 Identification of methane sulphinic acid (MSIA), methane sulphonic acid (MSA) and sulphuric acid (H2SO4) by ion chromatography (IC)
- 3.2 Discussion
- 3.2.1 Dimethyl sulphoxide (DMSO) formation
- 3.2.2 Dimethyl sulphone (DMSO2) formation
- 3.2.3 Sulphur dioxide (SO2) formation
- 3.2.4 Methane sulphonic acid (MSA) formation in the gas phase
- 3.2.5 Methane thiol formate (MTF) production
- 3.2.6 Carbonyl sulphide (OCS) formation
- 3.2.7 Discussion of the ion chromatographic data
- 3.3 Summary of results and conclusions
- Chapter 4
- Product study of the photo-oxidation of dimethyl sulphide in the presence of NOx
- 4.1 Results
- 4.2 Discussion
- 4.2.1 Dimethyl sulphoxide (DMSO) and dimethyl sulphone (DMSO2) formation
- 4.2.2 Sulphur dioxide (SO2) formation
- 4.2.3 Methane sulphonic acid (MSA) and methane sulphonyl peroxy nitrate (MSPN) formation
- 4.2.4 Formation of carbonyl sulphide (OCS) in the presence of NOx
- 4.3 Summary of results and conclusions
- Chapter 5
- Product study of the photo-oxidation of dimethyl sulphoxide
- 5.1 Results
- 5.1.1 Identification of methane sulphinic acid (MSIA) and methane sulphonic acid (MSA) by ion chromatography (IC)
- Identification of products formed in the gas-phase by FT-IR
- 5.2 Discussion
- 5.2.1 Formation of methane sulphinic acid (MSIA)
- 5.2.2 Product formation from DMSO photo-oxidation in the absence of NOx
- 5.2.3 Product formation from DMSO photo-oxidation in the presence of NOx
- 5.3 Summary of results and conclusions
- Chapter 6
- Appendix A
- Appendix B
- Appendix C
- Appendix D
- References