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EC number: 939-185-6 | 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:
- 23 September - 16 November 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- ring method
- Specific details on test material used for the study:
- - Analytical purity: 94.55 %
- Expiration date: 31 December 2017
- Storage condition: at room temperature - Key result
- Surface tension:
- 35.8 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Conclusions:
- The surface tension of the substance was determined to be 35.8 mN/m at a test concentration of 1 g/L and at 20°C.
Reference
The calibration factor for the torsion balance at 20°C was 1.0034.
The measured mean surface tension of a nominal 1 g/L solution of the test substance was 38.1 mN/m (mean of 38.0, 38.0, 38.0, 38.0 and 38.5 mN/m) at 20°C.
The corrected surface tension was; 38.2 mN/m.
The surface tension was <60 mN/m. Therefore, the Harkins-Jordan correction was applied and the corrected surface tension was 35.8 mN/m.
Description of key information
Based on a GLP study (K1, Foster, 2016) according to the EU method A.5 and OECD guideline 115, the surface tension was determined to be 35.8 mN/m at a test concentration of 1 g/L and at 20°C.
Key value for chemical safety assessment
- Surface tension:
- 35.8
- in mN/m at 20°C and concentration in mg/L:
- 1 000
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