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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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