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EC number: 947-037-7 | CAS number: -
Partition coefficient
Administrative data
Link to relevant study record(s)
- 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
- 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
- Analytical method:
- photometric method
- Key result
- Type:
- log Pow
- Partition coefficient:
- -2.5
- Temp.:
- 23 °C
- pH:
- ca. 3.4
- Remarks on result:
- other: mean of 6 measurements; the value refers to constituent trisodium trioxalatoferrate
Reference
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 |
0.9 |
358.1 |
- 2.6 |
A2 |
5 |
10 |
0.9 |
358.8 |
- 2.6 |
B1 |
10 |
10 |
0.9 |
369.8 |
- 2.6 |
B2 |
10 |
10 |
1.1 |
363.3 |
- 2.5 |
C1 |
20 |
10 |
1.5 |
359.7 |
- 2.4 |
C2 |
20 |
10 |
1.4 |
355.5 |
- 2.4 |
mean |
- |
- |
- |
- |
- 2.5 |
Stock solution: 725 mg/L reaction mass (= 410 mg/L trisodium trioxalatoferrate); the concentration of the constituent trisodium trioxalatoferrate was determined
Recovery rate: the recovery rate was between 87 and 90 %.
Description of key information
Key value for chemical safety assessment
- Log Kow (Log Pow):
- -2.5
- at the temperature of:
- 23 °C
Additional information
the value refers to the main constituent trisodium trioxalatoferrate
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