Registration Dossier
Registration Dossier
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EC number: 500-105-6 | CAS number: 39423-51-3 1 - 6.5 moles propoxylated
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:
- 2010-08-04
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- 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:
- Component of a Polyurethane System
Polyoxypropylene triamine
(39423-51-3) 60-100% - Key result
- Surface tension:
- 52.8 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Conclusions:
- The surface tension is 52.8 mN/m at 20°C and at a concentration of 1 g/L.
Reference
The calibration factor is determined by measuring the Surface Tension of water and comparing the value obtained in literature. The corrected value is taken from a table compiled on the basis of the Harkins-Jordan correction.
The final surface tention value is the mean value of two surface tension readings, which are 52.0 mN/m and 54.5 mN/m.
Description of key information
The surface tension of the test substance was determined to be 52.8 mN/m at 20°C and at a concentration of 1 g/L, following EU test method A.5 using the ring method (Baker, 2010).
Key value for chemical safety assessment
- Surface tension:
- 52.8
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
The test substance shows some surface activity.
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