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EC number: 807-413-2 | CAS number: 70280-68-1
Water solubility
Administrative data
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 02 March 2015-19 June 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP-compliant study in accordance with EC A.6, OECD 105 and OPPTS 830.7840.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Version / remarks:
- (2008)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Version / remarks:
- (1995)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7840 (Water Solubility)
- Version / remarks:
- (1998)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- flask method
Test material
- Reference substance name:
- 3-[3-(1,1,1,3,5,5,5-heptamethyltrisiloxan-3-yl)propoxy]propane-1,2-diol
- EC Number:
- 807-413-2
- Cas Number:
- 70280-68-1
- Molecular formula:
- C13H34O5Si3
- IUPAC Name:
- 3-[3-(1,1,1,3,5,5,5-heptamethyltrisiloxan-3-yl)propoxy]propane-1,2-diol
- Test material form:
- other: Liquid
- Details on test material:
- - Name (as cited in study report): X-22-1927
- Appearance: clear light yellow liquid
- Storage conditions: at room temperature
Constituent 1
Results and discussion
Water solubility
- Water solubility:
- 0.013 g/L
- Temp.:
- 20 °C
- pH:
- 6.9 - 7.1
- Remarks on result:
- other: Mean of the concentrations analysed at t=24, 48 and 72 h.
- Details on results:
- The concentration analysed after 24, 48 and 72 hours of stirring was 0.0128 g/L, 0.0123 g/L and 0.0145 g/L , resp. The maximum difference is slightly above 15% (i.e. 16%). Since the deviation is small and no trend was observed, this deviation was accepted and the water solubility was calculated as the mean of all 3 measurements.
No test substance was detected in the pretreated sample from the blank water mixture.
Applicant's summary and conclusion
- Conclusions:
- Interpretation of results (migrated information): slightly soluble (0.1-100 mg/L)
In a GLP-compliant study in accordance with EC A.6, OECD 105 and OPPTS 830.7840 using the flask method, the water solubility of the substance at 20°C and pH 6.9-7.1 has been determined as 0.013 g/L.
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