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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 945-910-7 | 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:
- 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline study performed under GLP. All relevant validity criteria were met.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- 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:
- effusion method: by loss of weight or by trapping vaporisate
- Temp.:
- 20 °C
- Vapour pressure:
- 0.66 Pa
- Temp.:
- 20 °C
- Vapour pressure:
- 0.005 mm Hg
- Temp.:
- 25 °C
- Vapour pressure:
- 1.2 Pa
- Temp.:
- 25 °C
- Vapour pressure:
- 0.009 mm Hg
- Conclusions:
- The vapour pressure of the test substance was determined to be at 20°C (293K): 0.66 Pa and at 25°C (298K): 1.20 Pa respectively
- Executive summary:
The vapour pressure was determined using by thermogravic effusion method in EU Method A.4, OECD TG 104 and US EPA OPPTS 830.7950. The vapour pressure of the test substance was determined to be at 20°C (293K): 0.66 Pa (4.1 x10^-3 mmHg) and at 25°C (298K): 1.20 Pa (9.1x10^-3 mmHg) respectively.
Reference
The results of the isothermal TGA analysis for the test substance and the vapour pressure at 20°C and 25°C are given in the following tables.
Table 1: Results of the isothermal TGA analysis
Temperature [°C] |
Weight loss [µg/min] |
νT [g/cm2/h] |
log νT |
log PT |
PT [Pa] |
|
|
|
|
|
|
45 |
6.383 |
7.62´10^-4 |
- 3.12 |
0.99 |
9.8 |
|
8.552 |
1.02´10^-3 |
- 2.99 |
1.14 |
14 |
|
7.522 |
8.98´10^-4 |
-3.05 |
1.07 |
12 |
|
|
|
|
|
|
50 |
10.94 |
1.31´10^-3 |
-2.88 |
1.26 |
18 |
|
12.93 |
1.54´10^-3 |
-2.81 |
1.34 |
22 |
|
11.84 |
1.41´10^-3 |
-2.85 |
1.30 |
20 |
|
|
|
|
|
|
55 |
17.17 |
2.05´10^-3 |
-2.69 |
1.48 |
30 |
|
19.59 |
2.34´10^-3 |
-2.63 |
1.55 |
35 |
|
18.19 |
2.17´10-3 |
-2.66 |
1.51 |
33 |
|
|
|
|
|
|
60 |
27.19 |
3.25´10^-3 |
-2.49 |
1.71 |
52 |
|
29.61 |
3.53´10^-3 |
-2.45 |
1.75 |
57 |
|
28.00 |
3.34´10^-3 |
-2.48 |
1.73 |
53 |
|
|
|
|
|
|
Table 2: Vapour pressure of the test substance
|
20°C [Pa] |
[mm Hg] |
25°C [Pa] |
[mm Hg] |
Test item |
0.66 |
4.9x10^-3 |
1.20 |
9.1x10^-3 |
The plot of the log PT of the test substance as function of the reciprocal temperatures was performed. The equation of the curve was: log PT = -4677 x 1/T + 15.77 (r = 0.988, n = 12).
Description of key information
Vapour Pressure: 0.66 Pa at 20 °C and 1.20 Pa at 25 °C, EU Method A.4, 2016
Key value for chemical safety assessment
- Vapour pressure:
- 1.2 Pa
- at the temperature of:
- 25 °C
Additional information
The vapour pressure was determined using by thermogravic effusion method in EU Method A.4, OECD TG 104 and US EPA OPPTS 830.7950. The vapour pressure of the test substance was determined to be at 20°C (293K): 0.66 Pa (4.1 x10^-3 mmHg) and at 25°C (298K): 1.20 Pa (9.1x10^-3 mmHg) respectively.
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.
