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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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: 295-443-1 | CAS number: 92045-61-9 A complex combination of hydrocarbons obtained by distillation from the product of a naphtha steam cracking process and subsequent catalytic selective hydrogenation of gum formers. It consists of hydrocarbons having carbon numbers predominantly in the range of C4 through C12 and boiling in the range of approximately 30°C to 230°C (86°F to 446°F).
Categories
- Category name:
- High Benzene Naphthas LOA
Justifications and discussions
- Category definition:
- High Benzene Naphthas
- Category rationale:
- The high benzene naphthas category is driven by benzene as Category 1 Carcinogen, Category 2 Mutagen. All streams containing 0.1% or more benzene to be considered for inclusion. This category contains hydrocarbons (aliphatic, aromatic and olefinic) with carbon numbers predominantly in the C5-C12 range and boiling from 30C to 300C. Members of this category contain >0.1% benzene and contain varying amounts of toluene, xylenes and n-hexane. Some category members contain PAHs, where this is the case anthracene has been quantified. Some category members contain 1,3-butadiene and this has been quantified where needed. Category members are usually produced by the distillation of products from a steam cracking process or by pyrolysis Companies importing streams will need to confirm that such streams meet the chemical description and are in domain. The category contains streams that have claimed compositions of single substances up to over 80%. These are not considered as pure substances as the variability during manufacture is such that this is not always the case and usually the production processes are not designed to make substances at such a high purity.
By definition, from the category, these streams have overlapping hydrocarbon compositions, within a defined range, and hence, will have similar properties. It is therefore reasonable to assume that the components of the high benzene naphthas will behave in a reasonably predictable manner, and with respect to phys-chem and environmental fate and effect properties read-across is valid.
For mammalian endpoints, the category members are liquids that are of moderate to low volatility. Inhalation and skin contact represent the primary route of exposure. Benzene, as a component at greater than 0.1% in all streams in this category is considered the key driver in establishing and assessing health effects. It can therefore be assumed that streams meeting the applicability domain will behave in a similar manner and that the use of read-across is valid.
For mammalian endpoints, the classification of these streams will be driven by the content of benzene as this is more than 0.1% w/w for all category members.
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.
