Registration Dossier
Registration Dossier
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EC number: 700-615-0 | CAS number: -
Hydrolysis
Administrative data
Link to relevant study record(s)
Description of key information
The experimental assessment was not feasible
Key value for chemical safety assessment
Additional information
Experimental assessment of abiotic degradation, hydrolysis as a function of pH, as detailed in Method C7 Abiotic Degradation, Hydrolysis as a Function of pH of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 111 of the OECD Guidelines for Testing of Chemicals, 13 April 2004, was not feasible for this test item.
This was since the test item is essentially insoluble in water. Both method guidelines limit the maximum working concentration of the sample solutions to that of half the water solubility of the test item. Based on the estimated water solubility of Sepisol Fast Violet 3B of less than 1.0 x 10-5 g/l, this would limit the maximum permitted concentration to below at least 5.0 x 10-6 g/l (5 ppb).
However due to limitations of the analytical method and the presence of trace levels of starting components remaining as impurities, this still may represent a significant overestimation of the true water solubility.
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