Registration Dossier
Registration Dossier
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EC number: 239-268-0 | CAS number: 15214-89-8
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2007
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Well documented report of guideline study conducted according to GLP.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 007
- Report date:
- 2007
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
Test material
- Reference substance name:
- 2-acrylamido-2-methylpropanesulphonic acid
- EC Number:
- 239-268-0
- EC Name:
- 2-acrylamido-2-methylpropanesulphonic acid
- Cas Number:
- 15214-89-8
- Molecular formula:
- C7H13NO4S
- IUPAC Name:
- (1Z)-N-(2-methyl-1-sulfopropan-2-yl)prop-2-enimidic acid
- Details on test material:
- - Name of test material: ATBS
- Physical state: white powder
- Analytical purity: 99.4 %
- Lot/batch No.: 061202
- Expiration date of the lot/batch: 30 june 2007
- Storage condition of test material: Room temperature in the dark
- Other: Date received: 18 January 2007
Constituent 1
Results and discussion
Surface tension
- Surface tension:
- 70.5 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
Any other information on results incl. tables
| Surface Tension (mN/m) | ||||
| Measured | Calibration Corrected | |||
| Time (minutes) | A | B | A | B |
| 0 | 71.0 | 71.0 | 71.0 | 71.0 |
| 5 | 71.0 | 71.5 | 71.0 | 71.5 |
| 10 | 71.5 | 71.5 | 71.5 | 71.5 |
| 15 | 71.5 | 71.5 | 71.5 | 71.5 |
| 20 | 71.0 | 71.0 | 71.0 | 71.0 |
| 25 | 71.0 | 71.0 | 71.0 | 71.0 |
| 30 | 71.0 | 71.0 | 71.0 | 71.0 |
Applicant's summary and conclusion
- Conclusions:
- The surface tension of a 1 g/L aqueous solution of ATBS was found to be 70.5 mN/m. As the result was greater than 60 mN/m, the test substance is not considered to be surface active.
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