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EC number: 457-080-9 | CAS number: 32940-15-1
Water solubility
Administrative data
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- August 31, 2005 - October 22, 2005
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 005
- Report date:
- 2005
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Version / remarks:
- July 27, 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Version / remarks:
- December 1992
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- flask method
Test material
- Reference substance name:
- -
- EC Number:
- 457-080-9
- EC Name:
- -
- Cas Number:
- 32940-15-1
- Molecular formula:
- C11H12O2
- IUPAC Name:
- 5-methoxy-1,2,3,4-tetrahydronaphthalen-2-one
- Test material form:
- solid: compact
- Details on test material:
- - Description: White-yellowish solid
Constituent 1
Results and discussion
Water solubility
- Key result
- Water solubility:
- 1.1 g/L
- Conc. based on:
- test mat.
- Incubation duration:
- >= 24 - <= 72 h
- Temp.:
- 20 °C
- pH:
- >= 3.79 - <= 3.98
- Details on results:
- - Mean concentrations were calculated for the 3 shaking times, see below
- Maximum difference between these 3 concentrations meets the criterion of ≤ 15% (i.e. 7%)
Any other information on results incl. tables
Sample |
Shaking time at 30°C |
Concentration (1) [g/L] |
Mean [g/L] |
1 |
72 |
1.22 |
1.06 |
2 |
72 |
0.89 |
|
3 |
48 |
1.05 |
1.14 |
4 |
48 |
1.22 |
|
5 |
24 |
0.97 |
1.08 |
6 |
24 |
1.18 |
|
(1) Concentration analysed after a 24 hour equilibration period at 20°C following shaking.
Applicant's summary and conclusion
- Conclusions:
- The water solubility of the substance at 20°C was determined to be 1.1 g/L.
- Executive summary:
The water solubility of the substance was determined using the flask method in a GLP study according to EC A.6 and OECD 105. Quantification was performed by GC-FID. The pH of the aqueous samples was 3.79 -3.98. From the measurements obtained after 24, 48 and 72 hours of stirring at 30°C followed by an equilibration period of 24 hours at 20°C, the water solubility at 20°C was determined to be 1.1 g/L.
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