Registration Dossier
Registration Dossier
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EC number: 909-129-5 | CAS number: -
Water solubility
Administrative data
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- April 5, 2010 to December 10, 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Version / remarks:
- Flask method
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- flask method
Test material
- Reference substance name:
- Reaction mass of m,alpha-dimethylstyrene and p,alpha-dimethylstyrene
- EC Number:
- 909-129-5
- Molecular formula:
- C10H12
- IUPAC Name:
- Reaction mass of m,alpha-dimethylstyrene and p,alpha-dimethylstyrene
- Details on test material:
- Manufacturer: Mitsui Chemicals, Inc.
Storage conditions: refrigeration (≤ 10°C)
Constituent 1
- Specific details on test material used for the study:
- Chemical name: isopropenyltoluene
Abbreviated name: IPT
Lot No.: none (in-process product)
Purity: 98.82% (m-isomer, 74.25%; p-isomer, 24.57 %)
Manufacturer: Mitsui Chemicals, Inc.
Results and discussion
Water solubility
- Key result
- Water solubility:
- 26 mg/L
- Conc. based on:
- act. ingr. (dissolved fraction)
- Loading of aqueous phase:
- 150 mg/L
- Incubation duration:
- 3 d
- Temp.:
- 20 °C
- Remarks on result:
- other: See remark
- Remarks:
- The report stated: "pH test paper was used to ensure that the pH of sample solutions had not changed during test period."
- Details on results:
- Please refer to attached background material.
Any other information on results incl. tables
Please refer to attached background material.
Applicant's summary and conclusion
- Conclusions:
- Solubility of isopropenyltoluene in water (flask method): 26.0 mg/L (20°C)
- Executive summary:
The solubility in water of isopropenyltoluene (98.82% pure) was conducted at 20°C in accordance with the flask method described in the OECD Guidelines for the Testing of Chemicals 105 (water solubility). A solution of about 5 times the water solubility was prepared in water and stirred protected from light at 30°C (n=9). After 1 day, three flasks were taken out and equilibrated by allowing them to stand for 24 hrs protected from light at 20°C, followed by centrifugation of an aliquot taken from the center and HPLC analysis. The other 6 flasks were treated in the same way 2 and 3 days after stirring at 30°C. Water solubility at 20°C after 1, 2 and 3 days of stirring was 26.4, 24.8 and 26.8 mg/L, overall mean 26.0 mg/L (variation ≤4.6%).
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