Registration Dossier
Registration Dossier
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EC number: 617-849-3 | CAS number: 86404-04-8
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 016
- Report date:
- 2016
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- GLP compliance:
- yes
- Type of method:
- OECD harmonised ring method
Test material
- Reference substance name:
- (5R)-5-[(1S)-1,2-dihydroxyethyl]-4-ethoxy-3-hydroxy-2,5-dihydrofuran-2-one
- EC Number:
- 617-849-3
- Cas Number:
- 86404-04-8
- Molecular formula:
- C8H12O6
- IUPAC Name:
- (5R)-5-[(1S)-1,2-dihydroxyethyl]-4-ethoxy-3-hydroxy-2,5-dihydrofuran-2-one
- Details on test material:
- Name of test material (as cited in study report): Ethyl Ascorbic acid
Physical state: White to very pale yellow crystalline powder
Test item storage: In freezer (≤ -15°C) desiccated
Stability: Stable under storage conditions until 21 April 2018 (retest date)
Constituent 1
Results and discussion
Surface tension
- Surface tension:
- 72.4 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
Any other information on results incl. tables
Results
The results for the determination of the surface tension of the test solution are given in the table.
Surface tension of the test item
|
|
|
Surface tension [mN/m] |
|
Measurement |
Time passed after transfer test solution to test vessel [minutes] |
individual |
mean |
mean multiplied by Φb and Harkins-Jordan corrected value |
1 |
18 |
71.2 |
71.0 |
72.4 |
2 |
19 |
70.8 |
||
3 |
20 |
71.0 |
||
4 |
21 |
70.9 |
||
5 |
22 |
71.0 |
Conclusion
The OECD harmonized ring method was applied for the determination of the surface tension of Ethyl Ascorbic acid. The surface tension of a test solution at a concentration of 1 g/l in water and at 20 °C was 72.4 mN/m. According to this, the test item is considered not to be surface active.
Applicant's summary and conclusion
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