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Registration Dossier
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EC number: 285-132-9 | CAS number: 85030-08-6
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- from 12 June 2017 to 20 September 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guidelineopen allclose all
- 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
Test material
- Reference substance name:
- Dodecanedioic acid, compound with 2,2',2''-nitrilotriethanol
- EC Number:
- 285-271-5
- EC Name:
- Dodecanedioic acid, compound with 2,2',2''-nitrilotriethanol
- Cas Number:
- 85049-97-4
- Molecular formula:
- C12H22O4.xC6H15NO3
- IUPAC Name:
- dodecanedioic acid - 2,2',2''-nitrilotriethanol (1:1)
- Reference substance name:
- Water
- EC Number:
- 231-791-2
- EC Name:
- Water
- Cas Number:
- 7732-18-5
- Molecular formula:
- H2O
- IUPAC Name:
- Dihydrogen oxide
- Test material form:
- solid
- Remarks:
- paste
- Details on test material:
- Name as cited in report: DDDA TEA salt
Physical appearance: beige to pale yellow paste
Storage conditions: at room temperature
Constituent 1
1
Results and discussion
Surface tension
- Key result
- Surface tension:
- 67.9 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
Any other information on results incl. tables
Table: Surface tension measurements
Measurement |
Time passed after transfer test solution to test vessel |
Surface tension |
||
individual |
mean |
mean (1) |
||
1 |
17 |
68.7 |
68.7 |
67.9 |
2 |
18 |
68.5 |
|
|
3 |
19 |
68.7 |
|
|
4 |
20 |
68.9 |
|
|
5 |
21 |
68.8 |
|
|
(1) Multiplied by the calibration factor and Harkins-Jordan corrected.
Applicant's summary and conclusion
- Conclusions:
- The surface tension of an aqueous substance solution at 1 g/L was determined to be 67.9 mN/m (at 20°C).
- Executive summary:
Using the OECD harmonized ring method in a GLP study according to EC A.5 and OECD 115, the surface tension of an aqueous substance solution at 1 g/L was determined to be 67.9 mN/m (at 20°C). According to the EC A.5 guideline the substance is not surface active.
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