Registration Dossier
Registration Dossier
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EC number: 234-911-1 | CAS number: 12039-90-6
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no data: aquatic toxicity unlikely
Marine water
- Hazard assessment conclusion:
- no data: aquatic toxicity unlikely
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
In accordance with the ECHA Guidance R.10 (May 2008), the derivation of PNECs is required for the chemical safety assessment (CSA) of substances manufactured/imported/used in quantities from 10 t/a onwards. Thus, no PNECs have been derived for the REACH registration of Zirconium disilicide in the tonnage band 1-10 t/a (REACH Annex VII).
Conclusion on classification
The water solubility of the substance analysed under the conditions of the T/D test (OECD Series on Testing and Assessment No. 29) was below the detection limit (method detection limit 0.04 µg/mL). Based on the results, Zirconium disilicide can be considered as highly insoluble in water. Thus, aquatic toxicity is unlikely to occur and no classification is warranted.
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.
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