Registration Dossier
Registration Dossier
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EC number: 237-430-5 | CAS number: 13780-39-7
Sediment toxicity
Administrative data
Link to relevant study record(s)
Description of key information
The risk is assessed on the basis of the EPM, which indicates no toxicity.
Key value for chemical safety assessment
Additional information
Neither target compound titanium oxychloride nor parent compound titanium tetrachloride will reach sediment compartments as they are being transformed in water immediately via hydrolysis to non-poisonous titanium dioxide (CAS 13463-67-7) and hydrogen chloride (CAS 7647-01-0). Effects may occur due to pH drop caused by the dissociation of hydrogen chloride, however these effects are not considered as substance specific. Accordingly the risk assessment can be based on the assessment of the other final hydrolysis product titanium dioxide by using the Equilibrium Partitioning Method (EPM) and no testing is required.
Due to the absence of aquatic toxicity threshold levels no such level can be derived for the sediment. This is supported by the absence of effects to the marine mud shrimps exposed to more than 35 g TiO2/kg sediment dw (Hudson 2007).In conclusion it is assessd that neither target compound titanium oxychloride nor parent compound titanium tetrachloride
and their hydrolysis products exhibit acute or chronic toxicity to sediment organisms. As no effect level was reached no threshold concentration was derived and no starting point for the calculation of sediment PNECs is given.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.
