Registration Dossier
Registration Dossier
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EC number: 270-315-8 | CAS number: 68424-66-8
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 07 March 2016 to 20 July 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 016
- Report date:
- 2016
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
Test material
- Reference substance name:
- Lanolin, hydroxylated
- EC Number:
- 270-315-8
- EC Name:
- Lanolin, hydroxylated
- Cas Number:
- 68424-66-8
- IUPAC Name:
- Lanolin, hydroxylated
- Test material form:
- solid
Constituent 1
Results and discussion
Surface tension
- Key result
- Surface tension:
- > 70.8 - < 71.8 mN/m
- Temp.:
- 21.3 °C
- Conc.:
- 0.1 g/L
Any other information on results incl. tables
Readings, times and temperatures for the sample solutions:
SAMPLE 1:
Time (mins) |
Reading (mN/m) |
Temperature (°C) |
74 |
71.5 |
21 |
114 |
71.5 |
21.2 |
124 |
71.5 |
21.2 |
134 |
71.5 |
21.4 |
144 |
71.5 |
21.4 |
SAMPLE 2:
Time (mins) |
Reading (mN/m) |
Temperature (°C) |
246 |
71 |
21.4 |
256 |
71 |
21.4 |
266 |
71 |
21.4 |
276 |
71 |
21.6 |
286 |
71 |
21.6 |
Mean Sample 1 result : 71.5 mN/m
pH of Sample 1 : 5.8
Mean Sample 2 result : 71.0 mN/m
pH of Sample 2 : 5.6
Overall result : 71.3 ± 0.5 mN/m
Overall temperature : 21.3 ± 0.5 °C
Applicant's summary and conclusion
- Conclusions:
- The surface tension, of solutions prepared at nominally 0.1 g/L of test item in water and diluted to 90 % saturation, has been determined to be 71.3 mN/m at 21.3 ± 0.5 °C. The test item was considered to be not surface-active.
- Executive summary:
The surface tension of the test substance was determined to be 71.3 ± 0.5 mN/m at 21.3 ± 0.5 °C (for solutions prepared at nominally 0.1 g/L of test item in water and diluted to 90% saturation), using a ring method designed to be compatible with Method A5 Surface Tension of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 115 of the OECD Guidelines for Testing of Chemicals, 27 July 1995. The test item was considered to be not surface-active.
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