Registration Dossier
Registration Dossier
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EC number: 215-267-0 | CAS number: 1317-36-8
Endpoint summary
Administrative data
Description of key information
Additional information
- The release of lead to the aqueous medium at 24h for the 100 mg/L loading was 101 µg/L at pH 8 (nominal)
Transformation/dissolution of PbO
24-hr screening transformation/dissolution tests were carried out on lead monoxide.
Considering the acute toxicity reference values at pH6 and pH7 and the higher solubility at the T/Dp screening test pH, it can be deduced/concluded that with the information available, PbO would fail the 24h screening test and should therefore be classified as Acute 1, Chronic 1.
In any case, this substance is included in Regulation (EC) No 1272/2008 Annex VI Table 3.1 under the entry “lead compounds with the exception of those specified elsewhere in this Annex (Index No 082-001-00-6). As such, the harmonised classification of Acute 1, Chronic 1 is legally binding.
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