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EC number: 807-413-2 | CAS number: 70280-68-1
Surface tension
Administrative data
- Endpoint:
- surface tension
- 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.5 and OECD 115.
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.5 (Surface Tension)
- Version / remarks:
- (2008)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- (1995)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- OECD harmonised ring 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
Surface tension
- Surface tension:
- 26.9 mN/m
- Temp.:
- 20 °C
Any other information on results incl. tables
Table: Surface tension measurements
Measurement |
Time passed after transfer test solution to test vessel |
Surface tension |
||
individual |
mean |
mean (1) |
||
|
|
|
|
|
1 |
15 |
27.9 |
|
|
2 |
16 |
27.8 |
28.0 |
26.9 |
3 |
17 |
28.1 |
|
|
4 |
18 |
28.0 |
|
|
5 |
19 |
28.1 |
|
|
|
|
|
|
|
(1) Multiplied by the calibration factor followed by correction according to Harkins-Jordan.
Applicant's summary and conclusion
- Conclusions:
- In a GLP-compliant study in accordance with EC A.5 and OECD 115 using the OECD harmonized ring method, the surface tension of a 90% saturated aqueous test substance solution at 20°C has been determined as 26.9 mN/m. The substance is surface active according to the criterium in the EC A.5 guideline.
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