Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Partition coefficient
Administrative data
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- OECD 107
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- Type of method:
- shake-flask method to: flask method
- Partition coefficient type:
- octanol-water
Test material
- Reference substance name:
- disodium 2,4-dihydroxy-5-[(2-hydroxy-3-nitro-5-sulphonato-phenyl)azo]benzoate, reaction products with chromium triacetate
- Molecular formula:
- not applicable
- IUPAC Name:
- disodium 2,4-dihydroxy-5-[(2-hydroxy-3-nitro-5-sulphonato-phenyl)azo]benzoate, reaction products with chromium triacetate
1
Study design
- Analytical method:
- photometric method
Results and discussion
Partition coefficient
- Key result
- Type:
- log Pow
- Partition coefficient:
- -3.77
- Temp.:
- 23 °C
- pH:
- ca. 6
- Remarks on result:
- other: mean of 6 measurements
Any other information on results incl. tables
Table 1: Results
no. |
stock solution [mL] |
n-octanol [mL] |
conc. in n-octanol phase [mg/L] |
conc. in water phase [mg/L] |
log pow |
A1 |
5 |
10 |
0.14 |
756.1 |
- 3.75 |
A2 |
5 |
10 |
0.13 |
767.6 |
- 3.78 |
B1 |
10 |
10 |
0.14 |
760.0 |
- 3.75 |
B2 |
10 |
10 |
0.12 |
757.9 |
- 3.80 |
C1 |
20 |
10 |
0.13 |
749.7 |
- 3.77 |
C2 |
20 |
10 |
0.14 |
761.1 |
- 3.75 |
mean |
- |
- |
- |
- |
- 3.77 |
Stock solution: 847 mg/L = 758.9 mg/L active substance
The recovery rate of the test substance was between 99 % and 101 %.
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
