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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 203-039-3 | CAS number: 102-54-5
Endpoint summary
Administrative data
Description of key information
In accordance with column 2 of REACH Annex VIII, studies do not need to be conducted if the substance is insoluble in water or if the substance is readily biodegradable.
Ferrocene is only slightly soluble in water (7mg/L) and although not readily biodegradable, it mineralises linearly over a period of 40 days. In addition,exposure considerations must be taken into account. Ferrocene is a fuel additive and is burned so exposure to the water compartment will be negligible. Therefore taking all the above into account several studies have been waived.
In study performed to OECD Guideline 301 B, Ferrocene failed to meet the criteria for ready biodegradability. It has been classified as Inherently biodegradable because by day 27 degradation was 56%, raising to 73% by day 41st. Degradation occurs in a linear pattern. Further biodegradation studies have been waived based on exposure considerations.
In a study performed to OECD 121, Ferrocene was determined to have a log10Kocvalue of 3.0 (equivalent Kocvalue = 1050). (log10Kocvalue determined by interpolation).
In accordance with column 2 of REACH Annex IX, the bioaccumulation in aquatic species does not need to be conducted as the substance has a low potential for bioaccumulation. Ferrocene also has a low Log Pow (<4) and is only very slightly soluble in water. Therefore exposure will be negligible and bioaccumulation in aquatic species will be minimal.
Additional information
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.
