Registration Dossier
Registration Dossier
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EC number: 282-438-4 | CAS number: 84204-70-6
Hydrolysis
Administrative data
Link to relevant study record(s)
Description of key information
Stable at pH 4, 7 and 9 at 50 °C
Half-life period > 1 year at 25 °C at pH 4, 7 and 9.
Key value for chemical safety assessment
- Half-life for hydrolysis:
- 1 yr
- at the temperature of:
- 50 °C
Additional information
The substance was tested according to the OECD111 and the Commission Directive 84/449/EEC C.10.
The substance is stable at pH 4, 7 and 9 at 50 °C.
Furthermore a test as a prove for the stability of the substance in gastric juice (HCl) was done, in HPLC.
Determination of free cobalt ions, before hydrolysis (pH 1,2): 0.97 % of test substance, corresponding to 14.9 % of total cobalt content;
after hydrolysis (pH 1,0) 1.30 % of test substance, corresponding to 20.0 % of total cobalt content.
The HPLC chromatograms before and after hydrolysis are equivalent.
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