Registration Dossier
Registration Dossier
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EC number: 226-901-0 | CAS number: 5538-94-3
Partition coefficient
Administrative data
Link to relevant study record(s)
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 13th to 19th November, 1992
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- Version / remarks:
- Adopted 12 May 1981
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- flask method
- Partition coefficient type:
- octanol-water
- Specific details on test material used for the study:
- Sample amount of n-octanol phases was 5.00 ml. This is also the recommended amount.
Maximum sample amount of water phases Is 20.00 ml - Analytical method:
- photometric method
- Key result
- Type:
- Pow
- Partition coefficient:
- 1.2
- Temp.:
- 21 °C
- pH:
- > 6 - < 8
- Details on results:
- The standard deviation of 0.1 was calculated for the six determinations performed at the highlighted temperature.
- Conclusions:
- The partition coefficient for the substance was determined to 1.2 (log 0.1) with a standard deviation of 0.1 calculated on six determinations performed at 21 °C +/- 1. The substance is ionised at all pH's.
- Executive summary:
The partition coefficient of the substance was determined by application of the "flask-shaking method" in accordance to OECD Guideline No.107 via a GLP compliant labatory. The sample was analysed against the spectrophotometric measaurements (412 nm) of the requisite calibration curve for this substance. The substance's partition coefficient was determined to 1.2 with a standard deviation of 0.1 calculated on the six determinations performed at 21 °C +/- 1.
Reference
The quaternary ammonium compounds, quertons or Q, are ionised at all pH.
Description of key information
The partition coefficient for the substance was determined to 1.2 (log 0.1) with a standard deviation of 0.1 calculated on six determinations performed at 21 °C +/- 1. The substance is ionised at all pH's.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 0.1
- at the temperature of:
- 21 °C
Additional information
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