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EC number: 600-065-0 | CAS number: 1003218-40-3
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:
- 05.07.09.2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- 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
- GLP compliance:
- no
- Type of method:
- effusion method: Knudsen cell
- Test no.:
- #1
- Temp.:
- 20 °C
- Vapour pressure:
- 0 Pa
- Key result
- Test no.:
- #2
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Test no.:
- #3
- Temp.:
- 50 °C
- Vapour pressure:
- 0 Pa
- Conclusions:
- The vapour pressure of the test item at 25 °C was determined to be 4.9E-7Pa.
- Executive summary:
A study was conducted according to OECD TG 104, Regulation (EC) No 440/2008 method A.4 and OPPTS 830.7950 to determine the vapour pressure of the test item. The vapour pressure of the test item was determined in the temperature range 80 -105°C. After the measurement a mass loss of approx. 8 % (w/w) was determined. A molecular mass of 376.53 g/mol was used for the evaluation. The values for 20, 25 and 50°C are calculated, using the Antoine constants A, B and C. The vapour pressure of the test item was determined to be 1.9E-7 Pa at 20°C, 4.9E-7 Pa at 25°C and 3.5E-5 Pa at 50°C respectively.
Reference
The vapour pressure was measured in the temperature range of 80 °C to 105 °C. After the measurement a mass loss of approx. 8 % (w/w) was determined. A molecular mass of 376.53 g/mol was used for the evaluation.
Measured vapour pressures and corresponding temperatures
Temperature / °C |
Vapour pressure / hPa |
80 |
2.4 x -10-5 |
85 |
6.1 x 10-5 |
90 |
1.1 x 10-4 |
95 |
1.9 x 10-4 |
100 |
3.3 x 10-4 |
105 |
5.6 x 10-4 |
95 |
2.0 x 10-4 |
The values for 20, 25 and 50 °C are calculated, using the Antoine constants A, B and C
Description of key information
The vapour pressure of the test item at 25 °C was determined to be 4.9E-7Pa (reference 4.6 -1).
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 25 °C
Additional information
A study was conducted according to OECD TG 104, Regulation (EC) No 440/2008 method A.4 and OPPTS 830.7950 to determine the vapour pressure of the test item. The vapour pressure of the test item was determined in the temperature range 80 -105°C. After the measurement a mass loss of approx. 8 % (w/w) was determined. A molecular mass of 376.53 g/mol was used for the evaluation. The values for 20, 25 and 50°C are calculated, using the Antoine constants A, B and C. The vapour pressure of the test item was determined to be 1.9E-7 Pa at 20°C, 4.9E-7 Pa at 25°C and 3.5E-5 Pa at 50°C respectively.
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