Registration Dossier
Registration Dossier
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EC number: 265-054-1 | CAS number: 64741-53-3 A complex combination of hydrocarbons produced by vacuum distillation of the residuum from atmospheric distillation of crude oil. It consists of hydrocarbons having carbon numbers predominantly in the range of C20 through C50 and produces a finished oil with a viscosity of at least 100 SUS at 100°F (19cSt at 40°C). It contains relatively few normal paraffins.
Phototransformation in air
Administrative data
- Endpoint:
- phototransformation in air
- Adequacy of study:
- other information
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: The predicted endpoint was determined using a validated computer model.
Data source
Referenceopen allclose all
- Reference Type:
- publication
- Title:
- Gas-phase tropospheric chemistry of organic compounds: a review
- Author:
- Atkinson, R.
- Year:
- 1 990
- Bibliographic source:
- Atmos. Environ., Vol. 24A, pp. 1-41
- Reference Type:
- review article or handbook
- Title:
- Unnamed
- Year:
- 2 001
- Reference Type:
- publication
- Title:
- EPI (Estimation Programs Interface) Suite, V3.10. U.S.
- Author:
- U.S. EPA.
- Year:
- 2 001
- Bibliographic source:
- Environmental Protection Agency, Office of Pollution Prevention and Toxics, Washington, DC.
Materials and methods
- Principles of method if other than guideline:
- Method: other (calculated): Calculations by EPIWIN V3.10; AOPWIN V1.90.
- GLP compliance:
- no
Test material
- Reference substance name:
- Automatically generated during migration to IUCLID 6, no data available
- IUPAC Name:
- Automatically generated during migration to IUCLID 6, no data available
- Details on test material:
- IUCLID4 Test substance: other TS: CAS No.: Various; Unrefined and acid treated base oils.
Constituent 1
Results and discussion
Any other information on results incl. tables
Indirect photolysis at 25 °C
Concentration of sensitizer: 1.50 x 10 6 OH radicals/cm3
Rate constant: 18.1757 x 10 -12 cm3/mol-sec
Half-life: See following table
Atmospheric Oxidation Half-Life, days
Structure |
C15 |
C20 |
C50 |
n-paraffin |
0.6 |
0.4 |
0.2 |
iso-paraffin |
0.6 |
0.4 |
0.2 |
1-ring naphthene |
0.5 |
0.4 |
0.2 |
2-ring naphthene |
0.4 |
0.3 |
0.1 |
3-ring naphthene |
0.4 |
0.3 |
0.1 |
1-ring aromatic |
0.7 |
0.5 |
0.2 |
2-ring aromatic |
0.2 |
0.2 |
0.1 |
3-ring aromatic |
0.3 |
0.3 |
0.1 |
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.
