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: 265-181-2 | CAS number: 64742-78-5 A complex combination of hydrocarbons obtained by treating an atmospheric tower residuum with hydrogen in the presence of a catalyst under conditions primarily to remove organic sulfur compounds. It consists of hydrocarbons having carbon numbers predominantly greater than C20 and boiling above approximately 350°C (662°F). This stream is likely to contain 5 wt. % or more of 4- to 6-membered condensed ring aromatic hydrocarbons.
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
In a key, static 48 hourDaphnia magnaacute toxicity test (OECD 202, KS=1), five daphnids/ replicate were exposed to the Water Accommodated Fraction (WAF) of heavy cracked fuel oil (MRD-10-579) at nominal concentrations of 0.05, 0.15, 0.45, 1.35 and 4.05 mg/L. The 48 hour EL50 was 0.22 mg/L based on mobility (EMBSI 2012a).
In seven reliable supporting 48-hourDaphnia magnastudies using WAF methodology, the EL50 values of other heavy fuel oil samples varied between 2 and >1000 mg/L (EMBSI, 2008e,f,g,h,i; Shell, 1997a, b).
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.
