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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 266-007-8 | CAS number: 65996-74-9 The oxidized surface of steel produced during reheating, conditioning, hot rolling, and hot forming operations. This substance is usually removed by process waters used for descaling, roll and material cooling, and other purposes. It is subsequently recovered by gravity separation techniques. Composed primarily of high-purity iron oxides. May contain varying amounts of other oxides, elements, and trace compounds.
Toxicity to aquatic plants other than algae
Administrative data
Link to relevant study record(s)
Description of key information
Three studies that looked at potential adverse effects of iron on aquatic plants were identified (Sinha et al (1994), Van der Welle et al (2007), Bosnir et al (2013)) , but none of these studies are considered reliable for various reasons:
1) The conducted experiments were non-standard toxicity tests
2) Iron concentration of test solutions was above the limiting solubility concentration for iron.
3) Total iron concentrations are reported., and no iron speciation was performed.
4) Some tests were performed under anaerobic water saturated conditions which are not considered relevant
5) No information on physicochemical properties of the test medium during the test was provided.
Van der Welle et al (2007) also reported that there are only positive effects on growth and photosynthesis at increasing Fe concentrations which indicate a lack of Fe in control medium
Key value for chemical safety assessment
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.
