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EC number: 239-268-0 | CAS number: 15214-89-8
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- 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.4 (Vapour Pressure)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: vapour pressure balance
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
Vapour pressure
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: this is the mean of two values: 5.4 and 3.3 x 10-7 Pa
Any other information on results incl. tables
| Run 1 | Run 2 | |
| Correlation (r) | - 0.9442 | - 0.9459 |
| Slope | - 4173 | - 4394 |
| Intercept | 7.730 | 8.261 |
| Vp (Pa) at 25°C | 5.4 x 10-7 | 3.3 x 10-7 |
The two runs gave a mean vapour pressure value at 25°C of 4.4 x 10-7 Pa.
Applicant's summary and conclusion
- Conclusions:
- The vapour pressure of ATBS was found to be 4.4 x 10-7 Pa at 25°C using vapour pressure balance.
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