Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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EC number: 270-732-5 | CAS number: 68477-42-9 A complex combination of hydrocarbons obtained from extractive distillation of saturated and unsaturated aliphatic hydrocarbons usually ranging in carbon numbers from C3 through C5, predominantly C4. It consists of saturated and unsaturated hydrocarbons having carbon numbers predominantly in the range of C3 through C5, predominantly butenes and isobutylene.
Flash point
Administrative data
Link to relevant study record(s)
Description of key information
The flash point of category C4, high 1,3 -butadiene (>0.1%).members ranges from <-30 °C to -18°C
Key value for chemical safety assessment
Additional information
Proprietary data was available from BASF for the category members, 64742 -83 -2, 92045 -23 -3, 87741 -01 -3 (BASF 2008). The data from these streams can be read across to the other members of the category. The flash points of the streams was reported to range from <-30 °C to -18 °C.
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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