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EC number: - | 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:
- November 12 to 13, 2019
- 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
- Key result
- Temp.:
- 50 °C
- Remarks on result:
- not determinable because of methodological limitations
- Remarks:
- The measured vapour pressures were below the detection limit of 1 x 10-5 hPa.
- Key result
- Temp.:
- 25
- Remarks on result:
- not determinable because of methodological limitations
- Remarks:
- The measured vapour pressures were below the detection limit of 1 x 10-5 hPa.
- Key result
- Temp.:
- 20 °C
- Remarks on result:
- not determinable because of methodological limitations
- Remarks:
- The measured vapour pressures were below the detection limit of 1 x 10-5 hPa.
- Conclusions:
- The measured vapour pressure was below the detection limit of 1 x 10-5 hPa.
- Executive summary:
A study was performed according to OECD TG 104 and Commission Regulation (EC) No. 440/2008, method A.4 in order to determine the vapour pressure of the test item by using the effusion method. All measured vapour pressures were below the detection limit of the effusion method for the determination of the vapour pressure. Based on the value of the detection limit (1 x 10-5 hPa) at the highest measurement point (25 'C) the following upper limit vapour pressure values for the test item were calculated:
20°C < 5.2 x 10^-4
25°C < 1.0 x 10^-3
50 °C < 2.0 x 10^-4
Reference
Calculated vapour pressures:
20°C < 5.2 x 10^-4
25°C < 1.0 x 10^-3
50 °C < 2.0 x 10^-4
Description of key information
Based on the value of the detection limit (1 x 10-5 hPa) at the highest measurement point (25 °C) the following upper limit vapour pressure values for the test item were calculated:
20°C < 5.2 x 10^-4
25°C < 1.0 x 10^-3
50 °C < 2.0 x 10^-4
Key value for chemical safety assessment
Additional information
A study was performed according to OECD TG 104 and Commission Regulation (EC) No. 440/2008, method A.4 in order to determine the vapour pressure of the test item by using the effusion method. All measured vapour pressures were below the detection limit of the effusion method for the determination of the vapour pressure. Based on the value of the detection limit (1 x 10-5 hPa) at the highest measurement point (25 °C) the following upper limit vapour pressure values for the test item were calculated:
20°C < 5.2 x 10^-4
25°C < 1.0 x 10^-3
50 °C < 2.0 x 10^-4
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