Registration Dossier
Registration Dossier
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 295-405-4 | CAS number: 92045-23-3 A complex combination of hydrocarbons produced by the distillation of the products of a steam cracking process. It consists predominantly of hydrocarbons having a carbon number of C4, predominantly 1-butene and 2-butene, containing also butane and isobutene and boiling in the range of approximately minus 12°C to 5°C (10.4°F to 41°F).
Melting point / freezing point
Administrative data
Link to relevant study record(s)
Description of key information
Melting point data were not available for any of the streams within this Category. However as the category consists of mainly C4 hydrocarbons, data were read across from hydrocarbon C4 substances (CAS numbers 107-01-7: -138.9°C (cis) and -105.52°C (trans), 115-11-7: -140.7°C, 106-98-9: -185°C, 25167-67-3: -185°C to -105.5°C, 106-97-8: -138°C, 75-28-5: -159.4°C). All information came from a peer reviewed handbook (CRC, 2008). The melting point range for this Category is therefore -185 to -105.5°C.
The mean of the melting point values for the category is -144.8°C and this has been used to complete the 'key value for chemical safety assessment'.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -144.8 °C
Additional information
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
