Registration Dossier
Registration Dossier
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EC number: 215-208-9 | CAS number: 1313-59-3
Endpoint summary
Administrative data
Description of key information
Disodium oxide (n°CAS 1313 -59 -3) in contact with water, being quasi-instantaneously degraded according to the reaction:
Na2O + H20 -> 2NaOH
Considering the high reactivity with water of the parent substance (half life of Na2O < 1 hour), the disodium oxide can be considered as a hydrolytically unstable substance justifying a non-testing decision for the tests related to its environmental fate and pathways.
Furthermore, the degradation product is well known (sodium hydroxide - n°CAS 1310 -73 -2) and has been widely investigated (European RAR available for NaOH, NaOH SIEF). Therefore, there is no lack of information on the degradation products and no further testing is necessary on them.
Additional information
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