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Classification & Labelling & PBT assessment

PBT assessment

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Administrative data

PBT assessment: overall result

Reference
Name:
Hydrocarbons, C11-C13 (odd numbered), n-alkanes, <2% aromatics
Type of composition:
legal entity composition of the substance
State / form:
liquid
Related composition:
Hydrocarbons, C11-C13 (odd numbered), n-alkanes, <2% aromatics
Reference substance:
Hydrocarbons, C11-C13 (odd numbered), n-alkanes, <2% aromatics
Reference substance:
Hydrocarbons, C11-C13 (odd numbered), n-alkanes, <2% aromatics
Reference substance:
Hydrocarbons, C11-C13 (odd numbered), n-alkanes, <2% aromatics
Reference substance:
Hydrocarbons, C11-C13 (odd numbered), n-alkanes, <2% aromatics
PBT status:
the substance is not PBT / vPvB
Justification:

Persistence Assessment

The substance is readily biodegradable and therefore based on initial persistence screening is not expected to meet the Persistent (P) or very Persistent (vP) criteria.

Bioaccumulation Assessment

Based on the data comprised in a Weight-of-evidence approach, it is reasonable to conclude that at least the n-tridecane component of  Hydrocarbons, C11-C13 (odd numbered), n-alkanes, <2% aromatics has a potential for bioaccumulation via oral uptake as indicated by the high log Kow value. Based on a sound assessment of calculated and experimental data for various n-paraffins done by Lampi et al. (2010, report attached in chapter 13) it can be concluded that Hydrocarbons, C11-C13 (odd numbered), n-alkanes, <2% aromatics might fulfill the B criterion but not the vB criterion.

Toxicity Assessment

Long-term aquatic toxicity tests did not show adverse effects upt to the limit of its solubility in water. The substance is neither classified as cancerogenic, mutagenic or toxic to reproduction nor is there any other evidence of chronic toxicity. Thus, the substance does not fulfill the T criterion.

Summary and overall Conclusions on PBT or vPvB Properties

Hydrocarbons, C11-C13 (odd numbered), n-alkanes, <2% aromatics does not meet the PBT / vPvB criteria. In addition see report in Section 13: An evaluation of the persistence, bioaccumulation and toxicity of petroleum hydrocarbons.