Registration Dossier
Registration Dossier
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EC number: 200-822-1 | CAS number: 74-93-1
Distribution modelling
Administrative data
- Endpoint:
- distribution modelling
- Adequacy of study:
- other information
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Based on an acceptable computer model.
Data source
Reference
- Reference Type:
- other: modeling
- Title:
- Estimation Programs Interface Suite for Microsoft® Windows, Version 3.11. United States Environmental Protection Agency, Washington, DC, USA.
- Author:
- U.S. EPA
- Year:
- 2 000
Materials and methods
- Model:
- calculation according to Mackay, Level III
- Release year:
- 2 006
Test material
- Reference substance name:
- Methanethiol
- EC Number:
- 200-822-1
- EC Name:
- Methanethiol
- Cas Number:
- 74-93-1
- Molecular formula:
- CH4S
- IUPAC Name:
- methanethiol
Constituent 1
Results and discussion
Any other information on results incl. tables
Level III Fugacity Model (Full-Output):
=======================================
Chem Name : Methanethiol
Molecular Wt: 48.1
Henry's LC : 0.00312 atm-m3/mole (Henry database)
Vapor Press : 1.51e+003 mm Hg (user-entered)
Log Kow : 0.78 (Kowwin program)
Soil Koc : 2.47 (calc by model)
Mass Amount Half-Life Emissions
(percent) (hr)
(kg/hr)
Air 99.3 7.8
1000
Water 0.695 360 0
Soil 0.0519 360 0
Sediment 0.00122 1.44e+003 0
Fugacity Reaction Advection
Reaction Advection
(atm) (kg/hr) (kg/hr)
(percent) (percent)
Air 5.14e-011 899 101
89.9 10.1
Water 2.3e-011 0.136 0.0709
0.0136 0.00709
Soil 4.96e-011 0.0102 0
0.00102 0
Sediment 1.9e-011 5.98e-005 2.48e-006 5.98e-006
2.48e-007
Persistence Time: 10.2 hr
Reaction Time: 11.3 hr
Advection Time: 101 hr
Percent Reacted: 89.9
Percent Advected: 10.1
Half-Lives (hr), (based upon Biowin (Ultimate) and
Aopwin):
Air: 7.802
Water: 360
Soil: 360
Sediment: 1440
Biowin estimate: 3.093 (weeks)
Advection Times (hr):
Air: 100
Water: 1000
Sediment: 5e+004
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
