Registration Dossier
Registration Dossier
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EC number: 202-414-9 | CAS number: 95-38-5
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:
- 2009
- 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)
- GLP compliance:
- no
- Type of method:
- ring method
- Key result
- Surface tension:
- 28.4 mN/m
- Temp.:
- 20 °C
- Conc.:
- 90 vol%
- Conclusions:
- The surface tension of test substance was determined to be 28.4 mN/m at 20°C.
Reference
Reference measurement with purified water
Mean value: 70.6mN/m
Standard deviation: 0.05mN/m
For calculation of mean value and standard deviation only the values of constant measurements obtained between 1300s up to end of run were considered.
Preparation of test item, 1st run
Mean value: 28.4mN/m
Standard deviation: 0.08mN/m
For calculation of mean value and standard deviation only the values of constant measurements obtained between 3900s up to end of run were considered.
Preparation of test item, 2nd run
Mean value: 28.4mN/m
Standard deviation: 0.06mN/m
For calculation of mean value and standard deviation only the values of constant measurements obtained between 2300s up to end of run were considered.
The surface tension of the test substance is 28.4 mN/m at 20°C (90% saturation concentration).
Description of key information
28.4 mN/m at 20°C of a 90 vol% saturation concentration.
Key value for chemical safety assessment
Additional information
The determination was carried out by ring method according to OECD Guideline 115.
The test substance is regarded as surface-active.
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