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EC number: 205-517-7 | CAS number: 141-98-0
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:
- 12 JUN 2012 - 16 AUG 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- GLP compliance:
- no
- Type of method:
- OECD harmonised ring method
- Key result
- Surface tension:
- > 53.6 - <= 56.2 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Conclusions:
- The surface tension at 20ºC is 54.9 ± 1.3
- Executive summary:
The surface tension test is done according to OECD Guideline 115. OECD harmonised ring method was used. The surface tension at 20 ºC is 54.9 ± 1.3
Reference
Determination 1 |
Determination 2 |
|
Calibration factor (Φ a) |
1.081 |
|
Application rate |
0.10 g / 100 ml (deionized water) |
|
Time between preparation and measurement of the solution [min] |
90 |
|
Measurement temperature [ºC] |
20 |
|
Time between individual measurements [s] |
30 |
|
Measured values [mN/m] |
53.5 / 54.2 / 54.5 / 55.0 / 54.5 / 54.5 ≡ 54.4 |
56.1 / 56.0 / 56.1 / 56/2 / 56.2 / 56.2 ≡ 56.1 |
Values x calibration factor (Φ a) [mN/m] |
58.8 |
60.6 |
Precise values after interpolation according to Harkins and Jordan [mN/m] |
54.0 |
55.8 |
≡ 54.9 ± 1.3 |
||
Description of key information
The surface tension test is done according to OECD Guideline 115. OECD harmonised ring method was used. The surface tension at 20 ºC is 54.9 ± 1.3
Key value for chemical safety assessment
- Surface tension:
- 54.9
- in mN/m at 20°C and concentration in mg/L:
- 1 000
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