Registration Dossier
Registration Dossier
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EC number: 203-247-4 | CAS number: 104-88-1
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 979
- Report date:
- 1979
Materials and methods
- Principles of method if other than guideline:
- Inhouse methode of Hoechst AG
Static; Range of measurement: 130 – 210°C
Representation of measuring values according ANTOINE - Type of method:
- static method
Test material
- Reference substance name:
- 4-chlorobenzaldehyde
- EC Number:
- 203-247-4
- EC Name:
- 4-chlorobenzaldehyde
- Cas Number:
- 104-88-1
- Molecular formula:
- C7H5ClO
- IUPAC Name:
- 4-chlorobenzaldehyde
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Temp.:
- 20 °C
- Vapour pressure:
- 0.9 hPa
- Remarks on result:
- other: Based on extrapolation of measured values according ANTOINE
- Temp.:
- 50 °C
- Vapour pressure:
- 4.5 hPa
- Remarks on result:
- other: Based on extrapolation of measured values according ANTOINE
Any other information on results incl. tables
Comparision of Measured and Calculated values
| T | P (measured) | P (calculated) | P (difference) |
| [°C] | hPa | hPa | hPa |
| 133.5 | 119.990 | 118.904 | 1.086 |
| 141.5 | 151.321 | 151.818 | -0.497 |
| 153.5 | 220.915 | 215.305 | 5.610 |
| 163.5 | 279.044 | 283.874 | -4.830 |
| 167.5 | 307.575 | 315.957 | -8.382 |
| 178.5 | 415.166 | 420.013 | -4.848 |
| 184.5 | 492.626 | 487.748 | 4.878 |
| 194.5 | 618.750 | 620.459 | -1.710 |
| 204.5 | 794.735 | 781.366 | 13.369 |
Applicant's summary and conclusion
- Conclusions:
- The vapor pressure of the test item is 0.9 hPa at 20°C
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