Registration Dossier
Registration Dossier
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EC number: 201-744-0 | CAS number: 87-41-2
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 15 - 16 Mar 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- GLP compliance:
- no
- Type of method:
- effusion method: vapour pressure balance
Test material
- Reference substance name:
- Phthalide
- EC Number:
- 201-744-0
- EC Name:
- Phthalide
- Cas Number:
- 87-41-2
- Molecular formula:
- C8H6O2
- IUPAC Name:
- 1,3-dihydro-2-benzofuran-1-one
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 0.072 Pa
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0.13 Pa
- Key result
- Temp.:
- 50 °C
- Vapour pressure:
- 1.5 Pa
Any other information on results incl. tables
The test item was tested as received. No further preliminary treatment such as drying or milling was performed. The results given in this report only apply to the tested sample.
The vapour pressure was measured in the temperature range of 10 °C to 60 °C. The measured vapour pressures at the corresponding temperatures are listed in the table. After the measurement a mass loss of approx. 91 % (w/w) was determined.
Temperature/ °C | Vapour pressure I hPa |
10 | 2.7 X 10-4 |
20 | 5.8 X 10-4 |
30 | 1.9 x 10-3 |
40 | 6.0 X 10-3 |
50 | 1.7 X 10-2 |
60 | 3.6 X 10-2 |
40 | 6.4 x 10-3 |
The following vapour pressure values for the test item were extrapolated from the experimental data (effusion method):
TI °C | p / hPa | p / Pa |
20 | 7.2 X 10-4 | 7.2 X 10-2 |
25 | 1.3 X 10-3 | 1.3 X 10-1 |
50 | 1.5 x 10-2 | 1.5 |
Applicant's summary and conclusion
- Executive summary:
The vapour pressure of the test substance was 0.00072 hPa at 20°C.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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