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EC number: 947-985-1 | CAS number: -
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 08 November 2017 to 05 April 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- 30 May 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- 27 July 1995
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: D26-3-3-1
- Expiration date of the lot/batch: 01 December 2018
- Purity test date: 11 April 2017
- Stability under test conditions: Room temperature, in the dark
- Purity: 47.4 % - Key result
- Surface tension:
- 72.4 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Conclusions:
- The mean surface tension of duplicate 1.0 g/L solutions of test item in water has been determined to be 72.4 mN/m at 20.0 ± 0.5 °C. The test item was considered not to be surface-active.
Reference
The readings, times and temperatures for the sample solutions are shown in the following tables:
Sample 1:
Age of Solution (min) |
Reading (mN/m) |
Temperature (°C) |
78 |
72.5 |
20.0 |
98 |
72.5 |
20.0 |
119 |
72.5 |
20.0 |
140 |
72.0 |
20.0 |
152 |
72.5 |
20.0 |
Sample 2:
Age of Solution (min) |
Reading (mN/m) |
Temperature (°C) |
78 |
72.5 |
20.0 |
95 |
72.0 |
20.0 |
108 |
72.0 |
20.0 |
123 |
72.5 |
20.0 |
144 |
72.5 |
20.0 |
Mean Sample 1 result : |
72.4 mN/m |
Mean Sample 2 result : |
72.3 mN/m |
Meanresult : |
72.4 mN/m |
Overall temperature : |
20.0 ± 0.5 ºC |
pH of Sample 1 : |
11.2 |
pH of Sample 2 : |
11.3 |
Description of key information
The surface tension of the substance was determined in a GLP-compliant study according to test method EU Method A.5 and OECD guideline 115 to be 72.4 mN/m at 20.0 ± 0.5 °C and 1 g/L following the ring method (K1 study, Covance, 2019).
Key value for chemical safety assessment
- Surface tension:
- 72.4
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
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