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Diss Factsheets

Administrative data

Endpoint:
phototransformation in air
Type of information:
(Q)SAR
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Generally accepted calculation method.
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6

Data source

Referenceopen allclose all

Reference Type:
secondary source
Title:
SIDS Category of alkyl sulfates, alkane sulfonates and alpha-olefin sulfonates
Author:
OECD
Year:
2007
Bibliographic source:
UNEP Publications
Reference Type:
other: QSAR
Title:
EPI Suite, EPI v3.12, December 8, 2005. Physical/chemical property estimation programs
Author:
US EPA
Year:
2005
Bibliographic source:
http://www.epa.gov/oppt/exposure/docs/episuitedl.htm, as cited in: SIDS Category of Alkyl sulfates, Alkane sulfonates and Alpha-olefin sulfonates
Report date:
2005

Materials and methods

Principles of method if other than guideline:
Method: other (calculated): EPIWIN v3.12, AopWin v1.91

Test material

Constituent 1
Chemical structure
Reference substance name:
Sulfuric acid, mono-C12-18-alkyl esters, sodium salts
EC Number:
273-257-1
EC Name:
Sulfuric acid, mono-C12-18-alkyl esters, sodium salts
Cas Number:
68955-19-1
Molecular formula:
C12-18H25-37SO4Na
IUPAC Name:
Sulfuric acid, C12-18-alkyl(even numbered) esters, sodium salts

Study design

Details on test conditions:
Sensitiser (for indirect photolysis): OH

Results and discussion

Any other information on results incl. tables

RS-Freetext:
Hydroxyl Radicals reaction (24-hr day ; 0.5E6 OH/cm3):

Chain   Half Life  Rate Constant
length  (hours)    (cm3/molecule-sec)

C12      26        1.48 E-11
C14      22        1.77 E-11
C16      19        2.05 E-11
C18      17        2.33 E-11

Applicant's summary and conclusion