Registration Dossier
Registration Dossier
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EC number: 200-835-2 | CAS number: 75-05-8
Other distribution data
Administrative data
- Endpoint:
- other distribution data
- Type of information:
- calculation (if not (Q)SAR)
- Adequacy of study:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
- Remarks:
- Limited information available
Data source
Referenceopen allclose all
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 981
- Reference Type:
- review article or handbook
- Title:
- Handbook of Environmental Fate and Exposure Data for Organic Chemicals.
- Author:
- Howard, P.H.
- Year:
- 1 993
- Bibliographic source:
- Volume IV. Solvents 2. Lewis Publishers, London.
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 1 992
Materials and methods
- Principles of method if other than guideline:
- No information available
- GLP compliance:
- not specified
- Type of study:
- volatility
- Media:
- water - air
Test material
- Reference substance name:
- Acetonitrile
- EC Number:
- 200-835-2
- EC Name:
- Acetonitrile
- Cas Number:
- 75-05-8
- Molecular formula:
- C2H3N
- IUPAC Name:
- acetonitrile
- Test material form:
- liquid
Constituent 1
Results and discussion
Any other information on results incl. tables
Based on the value of Henry's Law Constant (2.6 x 10-5 m3 atm/mole) volatilization is probably significant for surface water, although the rate may be slow. A volatilization half-life of 21 hours would be predicted for a 1 m deep river flowing at 1 m/sec, if the wind speed was 3 m/sec. Volatilization would become particularly important as a loss process in shallow waters (Howard, 1993; IPCS, 1992). Volatilization half-lives (first order kinetics) have been predicted from Henry's Law Constant using the EXAMS computer simulation: pond water 11 days river water 6 days oligotrophic lake 34 days eutrophic lake 36 days (Burns et al. 1981).
Volatilization half-lives (first order kinetics) have been predicted from Henry's Law Constant using the EXAMS computer
simulation:
pond water 11 days
river water 6 days
oligotrophic lake 34 days
eutrophic lake 36 days
(Burns et al. 1981).
Applicant's summary and conclusion
- Executive summary:
Based on the value of Henry's Law Constant (2.6 x 10-5 m3 atm/mole) volatilization is probably significant for surface water, although the rate may be slow. A volatilization half-life of 21 hours would be predicted for a 1 m deep river flowing at 1 m/sec, if the wind speed was 3 m/sec. Volatilization would become particularly important as a loss process in shallow waters (Howard, 1993; IPCS, 1992). Volatilization half-lives (first order kinetics) have been predicted from Henry's Law Constant using the EXAMS computer simulation: pond water 11 days river water 6 days oligotrophic lake 34 days eutrophic lake 36 days (Burns et al. 1981).
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.
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