Registration Dossier
Registration Dossier
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EC number: 258-508-5 | CAS number: 53378-51-1
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:
- 12.06.2012-16.08.2012
- 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)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- GLP compliance:
- no
- Type of method:
- OECD harmonised ring method
- Specific details on test material used for the study:
- The production method yields the substance in an approximately 50% aqueous solution with a content of sodium hydroxide. A sample of this has been dehydrated in order to perform the test.
- Key result
- Surface tension:
- > 62.3 - <= 67.1 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Conclusions:
- The surface tension is 64.7 ± 2.4
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] |
62.5 / 66.5 / 66.5 / 66.5 / 66.5 / 66.5 ≡ 65.8 |
62.6 / 62.9 / 62.8 / 62.6 / 62.6 / 62.6 ≡ 62.7 |
Values x calibration factor (Φ a) [mN/m] |
71.2 |
67.8 |
Precise values after interpolation according to Harkins and Jordan [mN/m] |
66.4 |
63.0 |
≡ 64.7 ± 2.4 |
||
Description of key information
The surface tension at 20ºC is 64.7 ± 2.4
Key value for chemical safety assessment
- Surface tension:
- 64.7
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
Dehydrated sample of IBP1-Na (produced by adding aqueous NaOH to IBP-1)
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