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EC number: 270-790-1
CAS number: 68478-10-4
A complex combination of hydrocarbons obtained by the distillation of debenzenized light steam-cracked naphtha. It consists predominantly of cyclic olefinic and aromatic hydrocarbons having carbon numbers predominantly in the range of C8 through C16 and boiling in the range of approximately 130°C to 300°C (226°F to 572°F).
High purity DCPD is a colourless crystalline solid at ambient temperature and pressure. Commercial DCPD is a liquid at ambient temperature and
The Pocket Guide presents
key information and data from the US Department of Health and Human
Services and as such is a reliable governmental source of information
and is considered a suitable key study source for this endpoint (NIOSH
2005). This is supported by data from ECETOC (1991) which also indicates
that DCPD is a solid.
The state of
commercial DCPD was taken from proprietary data. There is no information
on the GLP status of the study or the methods used but the results are
taken from company specific pro-forma and are considered to be suitable
for use for this endpoint.
grade and UPR grade are both liquid at room temperature and have a
vapour pressure of approximately 4.8 kPa. High purity DCPD is a waxy
solid at room temperature with negligible dust generation and with a
vapour pressure of 0.2-0.3 kPa. Based on the vapour pressure of the
different DCPD grades it is likely that the higher exposure of the
workers would be due to the liquid form of the substance. Therefore, an
exposure assessment based on the liquid form should be protective of the
worker using the solid form. This applies to inhalation and dermal
exposures at the workplace.
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.
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