Registration Dossier
Registration Dossier
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EC number: 212-506-0 | CAS number: 822-89-9
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1 - 3 July 2002
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 002
- Report date:
- 2002
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- static method
Test material
- Reference substance name:
- Hydroxyl-2-pyridone
- EC Number:
- 212-506-0
- EC Name:
- Hydroxyl-2-pyridone
- Cas Number:
- 822-89-9
- Molecular formula:
- C5H5NO2
- IUPAC Name:
- 1-hydroxy-1,2-dihydropyridin-2-one
- Test material form:
- solid: particulate/powder
Constituent 1
- Specific details on test material used for the study:
- - Batch n°: A0103550
- Analytical purity: 98.9%
- Expiration date: 01 October 2003
- Storage condition: at room temperature in the dark
Results and discussion
Vapour pressure
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 0.004 Pa
Any other information on results incl. tables
The least squares method gives a value of 4.07E-3 Pa for the vapour pressure of the test substance at 20°C. The error for the vapour pressure calculated from the fit was determined to be 0.6E-4 Pa. The deviation between the data points and the fit was less then 0.6%. Errors made in estimating the mean vapour pressure per temperature series were 11.8% maximum. Taking all these errors into account, a value of 0.6E-3 Pa was found to be reasonable for the uncertainty in the calculated vapour pressure at 20°C.
Applicant's summary and conclusion
- Conclusions:
- The static method was applied for the determination of the vapour pressure of the test substance.
The vapour pressure of the test item was 4.1E-3 +-0.6 Pa (or 3.1E-5 +- 0.5 mmHg) at 20°C (293K).
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