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Physical & Chemical properties

Vapour pressure

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Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
28 October 2016 to 01 November 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
2008
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
2006
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7950 (Vapor Pressure)
Version / remarks:
1996
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: OECD Guideline 113 (Screening Test for Thermal Stability and Stability in Air)
Version / remarks:
1981
Deviations:
no
GLP compliance:
no
Remarks:
Study was not performed under GLP, however the test facility was GLP-compliant.
Type of method:
dynamic method
Remarks:
Vapour-liquid equilibrium (VLE)
Key result
Temp.:
20 °C
Vapour pressure:
0.06 hPa
Remarks on result:
other: Calculated by extrapolation of the measured vapour pressure curve
Temp.:
25 °C
Vapour pressure:
0.09 hPa
Remarks on result:
other: Calculated by extrapolation of the measured vapour pressure curve
Temp.:
50 °C
Vapour pressure:
0.45 hPa
Remarks on result:
other: Calculated by extrapolation of the measured vapour pressure curve
Key result
Transition / decomposition:
no
Remarks:
No thermal effects
Transition temp.:
ca. 20 - <= 300 °C

Table 1. Results of the dynamic method

 No.  Temperature (°C)  Vapour pressure (hPa)  Remark
 1  100.3  6.3  measured up
 2  129.1  24.6  measured up
 3  149.5  49.8  measured up
 4  161.4  74.8  measured up
 5  170.6  99.4  measured up
 6  174.1  109.5  measured up
 7  165.9  84.7  measured down
 8  157.6  64.8  measured down
 9  150.1  52.2  measured down
Conclusions:
The vapour pressure of the test item was determined to be 0.06, 0.09 and 0.45 hPa at 20, 25 and 50 °C, respectively.
Executive summary:

Vapour pressure was determined by vapour-liquid equilibrium (dynamic method) according to OECD Guideline 104 and EU Method A.4 (2017). The study was not performed under GLP, however the test facility was GLP-compliant. The study is considered to be reliable without restrictions (Klimisch 1). The vapour pressure of the test item was determined to be 0.06, 0.09 and 0.45 hPa at 20, 25 and 50 °C, respectively, calculated by extrapolation of the measured vapour pressure curve.

Description of key information

The vapour pressure of the test item was determined to be 0.06, 0.09 and 0.45 hPa at 20, 25 and 50°C, respectively.

Key value for chemical safety assessment

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

Additional information

Vapour pressure was determined by vapour-liquid equilibrium (dynamic method) according to OECD Guideline 104 and EU Method A.4 (2017). The study was not performed under GLP, however the test facility was GLP-compliant. The study is considered to be reliable without restrictions (Klimisch 1). The vapour pressure of the test item was determined to be 0.06, 0.09 and 0.45 hPa at 20, 25 and 50°C, respectively, calculated by extrapolation of the measured vapour pressure curve.