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EC number: 295-518-9
CAS number: 92062-05-0
A complex combination of hydrocarbons obtained from the vacuum distillation of the products from a thermal cracking process. It consists predominantly of hydrocarbons having carbon numbers predominantly greater than C34 and boiling above approximately 495°C (923°F).
Standard adsorption/desorption studies are not applicable to petroleum
UVCB substances, therefore in accordance with Annex XI Section 1.3
testing is not scientifically necessary and the endpoint has been
fulfilled using QSAR calculations for relevant constituents. Full
justifications for this QSAR are presented in 'Attached justification',
but in brief these are justified because:
- the results are obtained from a QSAR model whose scientific validity
has been established
- petroleum substances fall within the applicability domain of the QSAR
- results are adequate for the purposes of risk assessment
- adequate and reliable documentation is provided
Calculated log Koc for constituents of this substance range between 4.47
- 14.70. It should be borne in mind that this is the full range of
predicted values, and that this may be misleading or unrepresentative of
the properties of the UVCB substance as a whole. The range should
therefore be treated with caution and not taken out of context. The
substance is a hydrocarbon UVCB. Standard tests for this endpoint are
intended for single substances and are not appropriate for this complex
substance. However, this endpoint is characterised using quantitative
structure property relationships for representative hydrocarbon
structures that comprise the hydrocarbon blocks used to assess the
environmental risk of this substance with the PETRORISK model (see
Product Library in PETRORISK spreadsheet attached in IUCLID section 13).
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.
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