Registration Dossier

Classification & Labelling & PBT assessment

PBT assessment

Currently viewing:

Administrative data

PBT assessment: overall result

PBT status:
the substance is not PBT / vPvB
Justification:

Zirconium acetate consists of an organic and an inorganic part. The organic acetate part of the molecule is readily biodegradable. For the inorganic part (zirconium) the criteria for PBT or vPvB identification of Annex XIII to the REACH regulation do not apply.

The organic part of zirconium acetate is proven to be readily biodegradable in an OECD 301B test. The available evidence on degradation is not sufficient for an assessment based on the Annex XIII criteria for persistence (P and vP). However, since the substance (acetate part) is demonstrated to be readily biodegradable, the screening criteria for P and vP are not met and hence it can be concluded that the substance is not P or vP.

The available evidence on bioaccumulation potential for the acetate part of the molecule is not sufficient for an assessment based on the Annex XIII criteria for this endpoint. Following its very low log Kow however, the screening criteria for bioaccumulative potential (B and vB) are not met and hence it can be concluded that the substance is not B or vB.

The available evidence on the toxicity potential for the acetate part of the molecule is sufficient for an assessment based on the Annex XIII criteria for this endpoint. The assessment shows that the screening criteria for toxicity potential (T) are met.

Based on the above, zirconium acetate should not be considered as a PBT/vPvB substance.