Registration Dossier

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REACH

Hydrocarbons, C4 and C8, butene concentrator by-product

EC number: 271-739-6 | CAS number: 68606-29-1 A complex combination of hydrocarbons produced during butylene concentrate production. It consists predominantly of C4 and C8 hydrocarbons.

Life Cycle description
Uses advised against

Ecotoxicological information

Ecotoxicological Summary

Administrative data

Hazard for aquatic organisms

Hazard for air

Hazard for terrestrial organisms

Hazard for predators

Additional information

PNECs were derived for freshwater, saltwater, sediment, and soil using the equation underlying the Petrotox model or equilibrium partitioning calculations.

Conclusion on classification

The classification of the butylene oligomers is based upon the available experimental data for member streams. Four toxicity studies are available for acute invertebrate, algal and fish toxicity for the streams 97280-83-6 and 9003-29-6. The reported effect concentrations were based on WAF data and the ranged from >1.55 - >100mg/l WAF. Based on these effect concentrations members of this category would be not be classified under the DSD and CLP Regulations.

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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