Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 225-562-6 | CAS number: 4927-39-3
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:
- 2016-03-31
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- 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:
- dynamic method
- Remarks:
- Vapour Liquid Equilibrium
- Key result
- Temp.:
- ca. 20 °C
- Vapour pressure:
- 0.29 hPa
- Remarks on result:
- other: calculated by extrapolation
- Temp.:
- ca. 25 °C
- Vapour pressure:
- ca. 0.39 hPa
- Remarks on result:
- other: calculated by extrapolation
- Temp.:
- ca. 50 °C
- Vapour pressure:
- ca. 1.56 hPa
- Remarks on result:
- other: calculated by extrapolation
- Conclusions:
- The test item has a vapour pressure of 0.29 hPa at 20°C.
- Executive summary:
The vapour pressure of the test item was calculated by extrapolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C, according to Regulation EC No. 440/2008 Method A.4. Vapour Pressure and OECD Test Guideline 104 (2006).
The vapour pressure is 0.29 hPa at 20°C, 0.39 hPa at 25°C and 1.56 hPa at 50°C.
Reference
Results of the thermal stability screening test showed no exothermic effects in the temperature range of 25 -300 °C.
The vapour pressure was measured in the temperature range of 86.4 to 158.4 °C.
No. |
Temperature (°C) |
Vapour pressure (hPa) |
Remark |
1 |
86.4 |
8.2 |
Measured up |
2 |
114.1 |
24.8 |
Measured up |
3 |
129.9 |
39.7 |
Measured up |
4 |
142.1 |
59.5 |
Measured up |
5 |
149.3 |
74.6 |
Measured up |
6 |
158.4 |
99.5 |
Measured up |
7 |
152.3 |
82.1 |
Measured down |
8 |
144.8 |
64.8 |
Measured down |
9 |
135.3 |
49.8 |
Measured down |
From the measured data points of the vapour pressure curve, the constants A, B and C of the Antoine equation were derived:
log10 p = A + (B / C + θ)
with:
A = 9.3464
B = -2311.13
C = 273.15
Description of key information
The test item has a vapour pressure of 0.29 hPa at 20°C.
Key value for chemical safety assessment
- Vapour pressure:
- 0.29 hPa
- at the temperature of:
- 20 °C
Additional information
For this end point, 1 study is available in which the vapour pressure of the test item was calculated by extrapolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C, according to Regulatoin EC No. 440/2008 Method A.4. and OECD Test Guideline 104. The vapour pressure is 0.29 hPa at 20°C, 0.39 hPa at 25°C and 1.56 hPa at 50°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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
