Registration Dossier
Registration Dossier
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EC number: 250-807-9 | CAS number: 31795-24-1
PBT assessment
Administrative data
PBT assessment: overall result
- PBT status:
- the substance is not PBT / vPvB
- Justification:
Potassium methylsilanetriolate dissociates completely into potassium and methylsilanetriolate ions in aqueous solution. The substance as sold is only stable at high pH (pH >12). At pH 9.0 and below, the substance is no longer in the ionised form and methylsilanetriol is formed.
Therefore,methylsilanetriol isassessed for PBT/vPvB. Potassium hydroxide is inorganic and PBT and vPvB criteria are not applicable.
Methylsilanetriol may persist in the environment but does not meet the criteria for B or T, and therefore should not be concluded as PBT or vPvB.
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