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EC number: 229-194-7 | CAS number: 6425-39-4
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:
- 2011-07-07 to 2011-07-08
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- Well performed GLP study in accordance with EU Method A.5 (Surface Tension).
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- 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: PFW100113
- Analytical purity: 99.3% (by GC)
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: the sample is stored in cool, well-ventilated storage area prior to testing.
OTHER SPECIFICS:
- Name of test material (as cited in study report): Jeffcat DMDEE
- Physical state: Liquid - Surface tension:
- 67.7 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Remarks on result:
- other: The surface tension result is corrected for water calibration. Solution age was 15 minutes for test No 1 and 35 minutes for test No 2.
- Conclusions:
- The surface tension of the substance was determined to be 67.7 mN/m at a test concentration of 1 g/L and at 20 °C. The substance is concluded not to have surface active properties.
Reference
Calibration:
The measured value of the surface tension of water: 66.0 mN/m
EC standard reading for surface tension of water: 72.75 mN/m
Calibration factor is: 72.75/66.0 = 1.102
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 Harkin-Jordan correction.
The duplicate runs provided identical results.
Description of key information
The surface tension of DMDEE was determined, in a GLP study according to test method EC A.5, to be 67.7 mN/m at a test concentration of 1 g/L and at 20 °C, following the ring method (Younis, 2011).
Key value for chemical safety assessment
- Surface tension:
- 67.7
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
The substance is concluded not to have surface active properties.
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