Registration Dossier
Registration Dossier
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EC number: 911-490-9 | 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:
- November 27th, 2012 - April 7th, 2013
- 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:
- (2008)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- (1995)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- OECD harmonised ring method
- Key result
- Surface tension:
- 65.2 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Conclusions:
- Using the OECD Harmonized ring method (in accordance with EC A.5 and OECD 115 and in compliance with GLP), the surface tension of an aqueous test substance solution at 1 g/L was measured to be 65.2 mN/m at 20°C. Because the surface tension is not < 60 mN/m, the substance is not surface active.
Reference
Table: Surface tension measurements
Measurement
|
Time passed [minutes]
|
Surface tension [mN/m] |
||
Individual
|
mean (1)
|
mean corrected (2)
|
||
1 |
61 |
63.0 |
|
|
2 |
62 |
63.0 |
64.4 |
65.2 |
3 |
63 |
64.3 |
|
|
4 |
64 |
64.2 |
|
|
5 |
65 |
64.3 |
|
|
6 |
66 |
64.6 |
|
|
7 |
67 |
64.6 |
|
|
(1) Mean calculated from measurements 3 to 7.
(2) Multiplied by the calibration factor followed by correction according to Harkins-Jordan.
Description of key information
Using the OECD Harmonized ring method (in
accordance with EC A.5 and OECD 115
and in compliance with GLP), the
surface tension of an aqueous
test substance solution at 1 g/L
was measured to be 65.2 mN/m at 20°C.
Key value for chemical safety assessment
- Surface tension:
- 65.2
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
Because the surface tension is not < 60 mN/m, the substance is not surface active.
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