Registration Dossier

Physical & Chemical properties

Vapour pressure

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2016-08-01 to 2016-08-18
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reference:
Composition 0
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
2006
Deviations:
no
Qualifier:
according to
Guideline:
other: OECD 113 Screening Test for Thermal Stability and Stability in Air
Version / remarks:
1981
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
GLP compliance:
no
Type of method:
dynamic method
Remarks:
Vapour-Liquid Equilibrium (VLE)
Test material information:
Composition 1
Key result
Temp.:
20 °C
Vapour pressure:
0.01 hPa
Remarks on result:
other: Calculated from Antoine equation
Temp.:
25 °C
Vapour pressure:
0.02 hPa
Remarks on result:
other: Calculated from Antoine equation
Temp.:
50 °C
Vapour pressure:
0.12 hPa
Remarks on result:
other: Calculated from Antoine equation

Thermal stability:

The test item showed no thermal effects until 300°C

Main test:

Vapour pressure was measured in range of 155 to 191.8°C

No. Temperature (°C) Vapour pressure (hPa) Remark
1 155 22.9 measured up
2 164.7 34.9 measured up
3 174.7 48.9 measured up
4 183.5 64.7 measured up
5 187.8 73.2 measured up
6 191.8 83.3 measured up
7 188.5 78.1 measured down
8 182.4 62.6 measured down
9 172.4 43.6 measured down

The regression parameters used for the calculation were:

A = 10.4166

B = -3016.42

C= 273.15

Conclusions:
The vapour pressure of the test item was calculated to be 0.01, 0.02 and 0.12 hPa at 20, 25 and 50°C respectively.
Executive summary:

The vapour pressure of the test item was determined according to OECD 104, using a dynamic method (vapour-liquid equilibrium). First a pre-test was performed to assess the thermal stability of the test substance. No thermal effects were observed up to a temperature of 300°C. The vapour pressure was assessed using 9 data points for which the temperature varied between 155.0 and 191.8 °C. The calculated vapour pressure were 0.01, 0.02 and 0.12 hPa at 20, 25 and 50°C respectively.

Description of key information

For this endpoint, one study is available in which the vapour pressure of the test item is assessed according to OECD 104. The calculated vapour pressures were found to be 0.01, 0.02 and 0.12 hPa at 20, 25 and 50°C respectively.

Key value for chemical safety assessment

Vapour pressure:
0.01 hPa
at the temperature of:
20 °C

Additional information