Registration Dossier
Registration Dossier
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EC number: 265-052-0 | CAS number: 64741-51-1 A complex combination of hydrocarbons produced by vacuum distillation of the residuum from atmospheric distillation of crude oil. It consists of hydrocarbons having carbon numbers predominantly in the range of C20 through C50 and produces a finished oil with a viscosity of at least 100 SUS at 100°F (19cSt at 40°C). It contains a relatively large proportion of saturated aliphatic hydrocarbons.
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
The vapour pressure of unrefined/acid treated oils is <0.0058 Pa.
Key value for chemical safety assessment
Additional information
The vapour pressure for unrefined/acid treated oils was estimated to be <0.0058 Pa at 20°C (US EPA, 2000).
No additional measured vapour pressure data are available for unrefined/acid treated oils but measured data for other lubricant base oils (OLBOs) is available. Both OLBOs and unrefined/acid treated oils are produced by distilling crude oil but with marginally differing processes and have similar physico – chemical properties. The vapour pressure for a solvent dewaxed heavy paraffinic base oil (CAS No. 64742-65-0) was determined to be 0.00017 Pa using the EU A.4 test method (Hazleton Laboratories, 1991).
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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