Registration Dossier
Registration Dossier
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EC number: 947-155-9 | CAS number: -
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 02 Jan 2020
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- GLP compliance:
- no
- Type of method:
- gas saturation method
- Key result
- Temp.:
- 18 °C
- Vapour pressure:
- 0.048 mm Hg
- Remarks on result:
- other: Average of 5
- Conclusions:
- MTDID 44428 has a calculated vapor pressure of 0.048 mm Hg at 18 °C.
- Executive summary:
The vapor pressure of MTDID 44428 was measured using the gas saturation method, with measurement by thermal desorption gas chromatography/mass spectrometry. The measurement was benchmarked by measurement of 2 -ethylhexyl acrylate vapor pressure, with good agreement with literature values. The study was performed in accordance with a guideline study but not GLP compliant. Therefore, the study is considered reliable with restrictions.
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 21 Nov 2013
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM E 1719-97 “Vapor Pressure Measurement by Ebuilliometry”
- GLP compliance:
- no
- Type of method:
- dynamic method
- Key result
- Test no.:
- #1
- Temp.:
- 20 °C
- Vapour pressure:
- 0 mm Hg
- Key result
- Test no.:
- #2
- Temp.:
- 25 °C
- Vapour pressure:
- 0.001 mm Hg
- Conclusions:
- MTDID 44428 has an extrapolated vapor pressure of 2.2E-4 mm Hg at 20 °C (8.4E-4 mm Hg at 25 °C). Extrapolated from experimental data (ASTM E 1719-97).
- Executive summary:
The vapor pressure of MTDID 44428 was measured using the dynamic method and extrapolated to lower temperatures using the Antoine equation. The study was performed in accoradance with ASTM E 1719 -97 guideline but not GLP compliant. Therfore, the study is considered reliable with restrictions.
Referenceopen allclose all
2-Ethylhexyl acrylate (2-EHA) was run as a control allowing for benchmarking of the developed method with literature values. Two literature values exist for 2-EHA, 0.01 mmHg at 20°C (NTP, 1992) and 0.178 mmHg at 25°C (Daubert and Danner, 1989). The average of five test results for 2-EHA showed a vapor pressure of 0.015 mm Hg at 18°C.
| Temp (°C) | Corrected Pvap (mmHg) |
| 89.9 | 4.6 |
| 98.2 | 14.5 |
| 125.4 | 44.2 |
| 144.0 | 94.0 |
| 164.8 | 193.6 |
| 178.1 | 293.2 |
| 188.3 | 392.8 |
| 211.7 | 729.7 |
Description of key information
MTDID 44428 has a calculated vapor pressure of 0.048 mm Hg at 18
°C.
Key value for chemical safety assessment
- Vapour pressure:
- 6.4 Pa
- at the temperature of:
- 18 °C
Additional information
The study was performed in accordance with a guideline study but not GLP compliant. The vapor pressure of MTDID 44428 was measured using the gas saturation method, with measurement by thermal desorption gas chromatography/mass spectrometry. The measurement was benchmarked by measurement of 2 -ethylhexyl acrylate vapor pressure, with good agreement with literature values. The study is considered reliable with restrictions.
In a second study, the vapor pressure of MTDID 44428 was measured using the dynamic method and extrapolated to lower temperatures using the Antoine equation. The study was performed in accoradance with ASTM E 1719 -97 guideline but not GLP compliant. Therfore, the study is considered reliable with restrictions.
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