Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
dissociation constant
Data waiving:
study technically not feasible
Justification for data waiving:
the study does not need to be conducted because the analytical method is not sensitive enough
other:
Justification for type of information:
Zinc is pH neutral and its ionic form is 2+, thus the dissociation constant relating to the acidity constant, pKa, as required by the IUCLID database and REACH Guidance document, is not relevant for the substance in both physical forms. Equilibrium of zinc ion in water is illustrated by Pourbaix diagram on page 18 of the attached report (Liipo J, Karhu J, Metsärinta M-L, Virta K, Wiik E, Santala M, Pihlasalo J, Salminen J, Tiihonen J and Harle S. (2010). Characterization of Pure Zinc Compounds –Zinc. Outotec report. Testing laboratory: Outotec Oy, Pori, Finland. Report no.: 10040-ORC-T. Report date: 2010-05-31)

Data source

Materials and methods

Results and discussion

Applicant's summary and conclusion