Registration Dossier
Registration Dossier
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EC number: 203-311-1 | CAS number: 105-58-8
Phototransformation in air
Administrative data
- Endpoint:
- phototransformation in air
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Peer reviewed data from HSDB. HSDB and SRC databases are referred to as reliable data source in Guidance on information requirements and chemical safety assessment Chapter R.7a: Endpoint specific guidance.
Data source
Referenceopen allclose all
- Reference Type:
- other: data base data
- Title:
- No information
- Author:
- HSDB database
- Year:
- 2 003
- Bibliographic source:
- HSDB database: http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?HSDB
- Reference Type:
- other: data base data
- Title:
- No information
- Author:
- SRC
- Bibliographic source:
- SRC
- Reference Type:
- publication
- Title:
- No information
- Author:
- Meylan WM, Howard PH
- Year:
- 1 993
- Bibliographic source:
- Chemosphere 26: 2293-99
- Reference Type:
- review article or handbook
- Title:
- No information
- Author:
- Lyman WJ et al.
- Year:
- 1 990
- Bibliographic source:
- Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 7-5, 8-13
- Reference Type:
- publication
- Title:
- No information
- Author:
- Bidleman TF
- Year:
- 1 988
- Bibliographic source:
- Environ Sci Technol 22: 361-367
- Reference Type:
- review article or handbook
- Title:
- No information
- Author:
- Daubert TE, Danner RP
- Year:
- 1 989
- Bibliographic source:
- Physical and Thermodynamic Properties of Pure Chemicals Data Compilation Washington, DC: Taylor and Francis
Materials and methods
Test material
- Reference substance name:
- Diethyl carbonate
- EC Number:
- 203-311-1
- EC Name:
- Diethyl carbonate
- Cas Number:
- 105-58-8
- Molecular formula:
- C5H10O3
- IUPAC Name:
- diethyl carbonate
- Details on test material:
- name of substance as cited on HSDB data base:
diethyl carbonate
Constituent 1
Results and discussion
Any other information on results incl. tables
Info from HSDB database (http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?HSDB):
ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere (1), diethyl carbonate, which has a vapor pressure of 10.8 mm Hg at 25 deg C (2), is expected to exist solely as a vapor in the ambient atmosphere. Vapor-phase diethyl carbonate is degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals (SRC); the half-life for this reaction in air is estimated to be 5 days (SRC), calculated from its estimated rate constant of 3.3X10-12 cu cm/molecule-sec at 25 deg C (SRC) determined using a structure estimation method (3). Diethyl carbonate may also undergo direct photolysis in the environment since this compound contains a functional group that can absorb light greater than 290 nm (4).
(1) Bidleman TF; Environ Sci Technol 22: 361-367 (1988)
(2) Daubert TE, Danner RP; Physical and Thermodynamic Properties of Pure Chemicals Data Compilation Washington, DC: Taylor and Francis (1989)
(3) Meylan WM, Howard PH; Chemosphere 26: 2293-99 (1993)
(4) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 8-13 (1990)
Applicant's summary and conclusion
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