Registration Dossier
Registration Dossier
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EC number: 297-664-9 | CAS number: 93686-15-8
Water solubility
Administrative data
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From November 2, 2020 to November 16, 2020
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 020
- Report date:
- 2020
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Deviations:
- yes
- Remarks:
- It was not possible to prepare the test item solutions at the saturation level recommended in the guideline.
- GLP compliance:
- yes
- Type of method:
- flask method
Test material
- Reference substance name:
- Sulfonic acids, C16-alkane hydroxy and C16-alkene, sodium salts
- EC Number:
- 297-664-9
- EC Name:
- Sulfonic acids, C16-alkane hydroxy and C16-alkene, sodium salts
- Cas Number:
- 93686-15-8
- IUPAC Name:
- Sulfonic acid, C16-alkane hydroxy and C16-alkene, sodium salts
- Test material form:
- solid
- Remarks:
- This solid sample was obtained from the original liquid form by removing water.
- Details on test material:
- CAS number: 93686-15-8
Constituent 1
- Specific details on test material used for the study:
- -Storage conditions
The test sample was sealed with nitrogen gas and stored with silica gel in a dark storage place at room temperature.
-Test item identification and stability under storage conditions
The infrared (IR) spectrum of the test item measured at this test facility was confirmed to be identical to that provided by the sponsor.
In addition, the IR spectrum of the test item after the completion of the experiment was the same as that before the start of the experiment, and it indicated that the test item was stable under the storage conditions.
Results and discussion
Water solubility
- Key result
- Water solubility:
- >= 35 - < 38 other: % w/w
- Conc. based on:
- act. ingr.
- Incubation duration:
- 24 h
- Temp.:
- 20 °C
- pH:
- ca. 10.3
Any other information on results incl. tables
Sample description | Test concentration (% w/w) | Observations | Solution pH |
Test solution-1 | 33.0 | Test solution was a clear, viscous, pale yellow solution. The test sample was completely dissolved. | 10.4 |
Test solution-2 | 35.0 | Test solution was a clear, viscous, pale yellow solution. The test sample was completely dissolved. | 10.3 |
Test solution-3 | 38.0 | Test solution was an opaque, pale yellow viscous liquid. The test sample was not completely dissolved. | Not applicable |
Applicant's summary and conclusion
- Conclusions:
- The water solubility of the registered substance was determined to be 35.0 to 38.0% w/w at 20ºC.
- Executive summary:
-Objective
The objective of this study is to obtain the water solubility of C16IOS-Na.
-Test guideline
OECD Guidelines for Testing of Chemicals, No. 105, July 27, 1995, "Water Solubility: Flask method"
-Test conditions
Test concentration: 33.0, 35.0 and 38.0% w/w
Test water: Purified water (Takasugi Pharmaceutical, The Japanese Pharmacopoeia)
Agitation temperature: 30ºC
Agitation period: 3 days
Test temperature: 20±0.5ºC
Equilibration time: 24 hours
Number of repetition: 1 (at each test concentration)
-Results
The water solubility of the registered substance was determined to be 35.0 to 38.0% w/w at 20ºC.
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