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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 270-736-7 | CAS number: 68477-53-2 A complex combination of organic compounds obtained by the distillation of products from a steam cracking process. It consists of unsaturated hydrocarbons having carbon numbers predominantly in the range of C5 through C12.
Density
Administrative data
Link to relevant study record(s)
Description of key information
The density of high purity DCPD is 0.9302 g/cm3 at 35°C. The density of commercial DCPD Is 0.975-0.989 g/cm3 at 20°C.
Key value for chemical safety assessment
- Relative density at 20C:
- 0.98
Additional information
The CRC handbook is peer reviewed and is considered reliable and a suitable key study for this endpoint (Lide 2008). As a supporting study, WHO ICSC (2005) have identified the density of the test substance is 0.98 g/cm3. No information on the primary source of the data or the methods used is available. However, this information is taken from a reliable peer reviewed handbook and so can be considered reliable and suitable for use for this endpoint.
The density of commercial DCPD (94%) was taken from proprietary data (Shell 2016). The study is not GLP compliant but followed guideline ASTM D4052 and is considered suitable for use for this endpoint.
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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