Registration Dossier
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EC number: 603-520-1 | CAS number: 131807-57-3
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- gas saturation method
- Specific details on test material used for the study:
- Substance name: DPX-JE874-498
Lot #: JAGX150811
Purity: 98.8% - Test no.:
- #5
- Temp.:
- 80 °C
- Vapour pressure:
- 0 Pa
- Test no.:
- #4
- Temp.:
- 70 °C
- Vapour pressure:
- 0 Pa
- Test no.:
- #3
- Temp.:
- 60 °C
- Vapour pressure:
- 0 Pa
- Test no.:
- #2
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: 6.67e-9 mm Hg
- Key result
- Test no.:
- #1
- Temp.:
- 20 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: 4.67e-9 mm Hg
- Conclusions:
- Vapour pressure: 6.22e-7 Pa (4.67e-9 mm Hg) at 20°C
- Executive summary:
This study was conducted to determine the vapour pressure of the test substance. The vapour pressure was determined according to the regulatory guidelines OPPTS 830.7950 and OECD 104 employing the gas saturation method.
The vapour pressure of the test item was determined at three gas flow rates (approximately 10, 20, and 30 mL/min) and at three temperatures (60, 70, and 80°C). The analysis of the test substance was conducted using a validated HPLC method. The mean vapour pressure values were 7.540e-6 , 1.650e-5 and 2.172e-5 Pa at 60, 70, and 80°C, respectively. A vapour pressure curve was plotted using inverse value of experimental temperature in K (1/T) on X-axis and vapour pressure (Log P) on Y-axis. The vapour pressure of the test item at 20 and 25°C was calculated using slope and intercept of the regression line. The extrapolated vapour pressure of the test substance at 20°C was 6.22e-7 Pa (4.67e-9) and at 25°C was 8.89e-7 Pa (6.67e-9).
Reference
Description of key information
OECD 104; EPA OPPTS 830.7950
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 20 °C
Additional information
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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