Registration Dossier
Registration Dossier
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EC number: 922-114-8 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Additional information
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 characterized 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 to Section 13).
The distribution of the substance in the environmental compartments, air, water, soil and sediment, has been calculated using the PETRORISK Model, version 6.02. Based on the regional scale exposure assessment, the multimedia distribution of the substance is 78% to air, 16% to water, 5.2% to sediment and 0.9% to soil. Distribution modelling results are included in the 'Multimedia distribution modelling results' tab in the PETRORISK spreadsheet attached to Section 13 of the CSR.
There are reliable data available considered suitable for read-across using the analogue approach and which are reported here in addition. The target substance is a hydrocarbon solvent with carbon numbers in the range of C5 to C6. The main constituents of the mixed solvent consist of about 43% of C6 species and about 57% of C5 species. n-Hexane is only present in concentrations < 5% of the total volume.
Taking into account all available data, animal and human toxicity data as well as environmental fate and effects data show that source substances have a similar (eco-)toxicological and environmental fate properties as the target substance.
Therefore, read-across is performed based on an analogue approach (for details please refer to the analogue justification which is attached in section 13 of the technical dossier).
The log Koc of n-hexane and pentane were calculated to be 3.34 and 2.9, respectively. This has been read across to Hydrocarbons, C5-C6, n-alkanes, isoalkanes, <5% hexane. These values indicate that although an moderate adsorptivity Hydrocarbons, C5-C6, n-alkanes, isoalkanes, <5% hexane still has a good mobility in the environment.
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.
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