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EC number: 448-300-4 | CAS number: 88642-03-9
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:
- 2004-10-22
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Version / remarks:
- 1995
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- effusion method: vapour pressure balance
- Key result
- Test no.:
- #1
- Temp.:
- 20 °C
- Vapour pressure:
- 0.009 Pa
- Key result
- Test no.:
- #2
- Temp.:
- 25 °C
- Vapour pressure:
- 0.021 Pa
- Key result
- Test no.:
- #3
- Temp.:
- 50 °C
- Vapour pressure:
- 0.78 Pa
- Conclusions:
- The vapour presure of test item was determined to be 9.21*E-03 Pa at 20 °C, 2.1*E-02 Pa at 25 °C and 7.8*E-01 Pa at 50 °C.
- Executive summary:
The vapour presure of the test item was determined to according to OECD TG 104 using vapour pressure balance. The vapour presure of test item was determined to be 9.21*E-03 Pa at 20 °C, 2.1*E-02 Pa at 25 °C and 7.8*E-01 Pa at 50 °C.
Reference
The vapour pressure was measured in the temperature range of 19 °C to 55 °C. Above 19 °C a vapour pressure could be measured. The measured vapour pressures at the corresponding temperatures are listed in the following table:
Temperature / °C |
Vapour pressure / hPa |
19.5 |
8.1 x 10-5 |
20.3 |
9.0 x 10-5 |
21.5 |
1.1 x 10-4 |
25.4 |
2.3 x 10 -4 |
29.0 |
4.3 x 10-4 |
31.7 |
5.9 x 10-4 |
39.5 |
1.9 x 10-3 |
42.5 |
3.1 x 10-3 |
46.5 |
4.7 x 10-3 |
50.1 |
7.7 x 10-3 |
54.4 |
1.3 x 10-2 |
Final results (calculated)
T in °C |
p in hPa |
p in Pa |
20 |
9.2 x 10-5 |
9.2 x 10 -3 |
25 |
2.1 x 10-4 |
2.1 x 10-2 |
| 50 | 7.8 x 10 -4 |
7.8 x 10-2 |
Description of key information
Key value for chemical safety assessment
- Vapour pressure:
- 0.009 Pa
- at the temperature of:
- 20 °C
Additional information
The vapour presure of the test item was determined to according to OECD TG 104 using vapour pressure balance. The vapour presure of test item was determined to be 9.21*E-03 Pa at 20 °C, 2.1*E-02 Pa at 25 °C and 7.8*E-01 Pa at 50 °C.
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