Registration Dossier
Registration Dossier
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EC number: 309-264-4 | CAS number: 100208-62-6
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
Water solubility = 4.40% (w/w)
Key value for chemical safety assessment
Additional information
Percentage of water soluble compunds in the substance, UVCB item, established by the flask method is 4.40%. This value is obtained using the gravimetric method as analytical method.
The test item is a pigment and as such it is expected to be approximately insoluble. The higher than expected solubility resulted in the test can be a consequence of the testing procedure: stirring at 30°C for some days can partially break the aluminium complexes present in the UVCB item or stirring at a pH=4.2 can partially convert Aluminium hydroxide in its soluble forms.
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