Registration Dossier
Registration Dossier
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EC number: 215-209-4 | CAS number: 1313-60-6
Endpoint summary
Administrative data
Description of key information
The exothermic and instantaneous hydrolysis of disodium peroxide (Na2O2 - n°CAS 1313 -60 -6) according the reaction:
Na2O2 + H2O -> 2NaOH + 1/2O2
was confirmed by industrial practice (see section 5.1.2 of the IUCLID dossier). After the reaction, the pH of the solution is > 12. Therefore, disodium peroxide is considered as corrosive.
Key value for chemical safety assessment
Skin irritation / corrosion
Link to relevant study records
- Endpoint:
- skin corrosion: in vitro / ex vivo
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study need not be conducted because the available information indicates that the criteria are met for classification as corrosive to the skin or irritating to eyes
Reference
Endpoint conclusion
- Endpoint conclusion:
- adverse effect observed (corrosive)
Eye irritation
Link to relevant study records
- Endpoint:
- eye irritation: in vitro / ex vivo
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study need not be conducted because the available information indicates that the criteria are met for classification as corrosive to the skin or irritating to eyes
Reference
Endpoint conclusion
- Endpoint conclusion:
- no study available
Respiratory irritation
Endpoint conclusion
- Endpoint conclusion:
- adverse effect observed (irritating)
Additional information
Justification for classification or non-classification
With the physico-chemical property (sodium hydroxide generation) and the weight of evidence (industrial practise), disodium peroxide is considered as corrosive on the criteria basis of the CLP regulation.
It is not possible to assign a sub-category on basis on physico-chemical effects (guidance on the application of the CLP criteria, version 5.0, July 2017). However, the harmonised classification (annex VI of regulation n°1272/2008 - CLP00) precised the sub-category 1A. Disodium peroxide is considered as Skin Cor. 1A, H314.
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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