Registration Dossier
Registration Dossier
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EC number: 931-037-9 | CAS number: -
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
Water Solubility (Bistridecylsulfosuccinate Content):
The equivalent concentration (g/l) of test material in the sample solutions is shown in the following table:
Results:
Sample Number |
Time Shaken at ~ 30ºC (hours) |
Time Equilibrated at 20ºC (hours) |
Concentration (g/l) |
Solution pH |
1 |
24 |
24 |
< 2.2 x 10-5 |
5.9 |
2 |
48 |
24 |
< 2.2 x 10-5 |
5.9 |
3 |
72 |
24 |
< 2.2 x 10-5 |
6.2 |
The water Solubility (Bistridecylsulfosuccinate Content has been calculated as equivalent to less than or equal to 2.2 x 10‑5 g/l of test material in solution at 20.0 ± 0.5 °C, using the flask method, Method A6 of Commission Directive 92/69/EEC.
Water Solubility (Total Soluble Barium Content):
The concentration (g/l) of barium in the sample solutions is shown in the following table:
Results:
Sample Number |
Time Shaken at ~ 30ºC (hours) |
Time Equilibrated at 20ºC (hours) |
Barium Concentration (g/l) |
Solution pH |
1 |
24 |
42 |
2.21 x 10-2 |
6.5 |
2 |
24 |
42 |
2.09 x 10-2 |
6.4 |
3 |
24 |
42 |
0.182 |
6.1 |
4 |
24 |
42 |
0.287 |
5.8 |
2.15 x 10-2 g/l of barium was calculated in solution at 20.0 ± 0.5°C, using a flask method based on Method A6 of Commission Directive 92/69/EEC. The use of two different loading rates confirmed that all barium containing components were at saturation for the definitive value reported. The pH of these two samples were in the range 6.4 to 6.5. Apparent solubility of the barium content of the test material increased with a further increase in the nominal test material loading rate, but this was attributed to a shift in the final solution pH, since as anticipated, the solubility of the inorganic barium components of the test material were demonstrated to be inversely proportional to the final sample solution pH, i.e. solubility increased as sample solution pH decreased.
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