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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 295-438-4 | CAS number: 92045-57-3 A complex combination of hydrocarbons obtained by treating a petroleum fraction, derived from a pyrolysis process, with hydrogen in the presence of a catalyst. It consists predominantly of unsaturated hydrocarbons having carbon numbers predominantly in the range of C5 through C11 and boiling in the range of approximately 35°C to 190°C (95°F to 374°F).
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Toxicity to algae data are available for 2 streams within this Category. The ErL50 growth rate range was 2.3 mg/L at 72 hours and 2.1 – 2.2 mg/L at 96 hours. A 72 and 96 hour NOELR of 0.18 mg/L was cited.
Key value for chemical safety assessment
Additional information
CAS No 68513-69-9: This study is GLP compliant and follows a standard guideline. It is considered reliable and acceptable for use as a key study. Based on measured concentrations, the EC50 was 2 mg/L at 72 hours and 1.8 mg/L at 96 hours for growth rate, and 1.3 mg/L at 72 and 96 hours for biomass. Based on actual loading rates, the EL50 was 2.3 mg/L at 72 hours and 2.1 mg/L at 96 hours for growth rate, and 1.5 mg/L at 72 hours and 1.4 mg/L at 96 hours for biomass.
CAS No 68513-69-9 and 68921-67-5: This is a GLP compliant, guideline study considered adequate for assessment. After 72 and 96 hours of exposure to Pyrolysis C10+ Fuel Oil (from Pyrolysis Gasoline Distillation) the following conclusions were made. Based on actual loading rates, effects on growth rate (r) gave an EL50 of 2.3 mg/L at 72 hours and 2.2 mg/L at 96 hours and effects on biomass (b) gave an EbL50 of 1.3 mg/L at 72 hours and 1.2 mg/L at 96 hours. Based on measured concentrations, effects on growth rate (r) gave an ErC50 of 1.7 mg/L at 72 hours and an ErC50 of 1.6 mg/L at 96 hours and effects on biomass (b) gave an EbC50 of 0.95 mg/L at 72 hours and an EbC50 of 0.91 mg/L at 96 hours. Effects based on average specific growth rate and area under the growth curves gave a 72 and 96 hour NOELR of 0.18 mg/L and a NOEC 0.12 mg/L.
Although measured concentrations were reported as the test substance is a hydrocarbon stream with various components reporting a measured concentration does not relate to a concentration of the raw stream. The results reported as WAF which better represent the potential toxicity of the test substance have been used instead.
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.
