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Diss Factsheets

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REACH

Hydrocarbons, C4, n-butene conc.

EC number: 306-005-7 | CAS number: 95465-90-0

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

Measured ecotoxicity data are not available for the aquatic toxicity endpoints.PNECs have not been derived for freshwater, saltwater, sediment, and soil.

In accordance with column 2 of REACH Annex VII and VIII, the acute toxicity tests do not need to be conducted if there are mitigating factors indicating that aquatic toxicity is unlikely to occur. This Category consists of streams which are gas at standard temperature and pressure and is expected to partition primarily to air; therefore aquatic toxicity tests may not be relevant. In addition, it is technically difficult to maintain aqueous concentrations of gases for toxicity testing.

Conclusion on classification

Cas Numbers 92045-23-3 and 95465-89-7 are both listed in Annex I of Directive 67/548/EEC replaced by Table 3.2 in Annex VI to CLP Annex I but are not classified for environmental hazards. Additionally constituent substances, butane, isobutene, butene, isobutene are listed in Annex 1 of Directive 67/548/EEC replaced by Table 3.2 in Annex VI to CLP but are not classified for environmental hazards. This Category would not be classified for environmental hazards

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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