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Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
December 2014
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
GLP compliance:
not specified
Type of method:
dynamic method
Test no.:
#1
Temp.:
25 °C
Vapour pressure:
8.77 Pa
Remarks on result:
other: calculated value
Test no.:
#2
Temp.:
20 °C
Vapour pressure:
6 Pa
Remarks on result:
other: calculated value

RESULTS

The determination of the vapour pressure of the test item was performed in accordance with the OECD guidelines for the Testing of Chemicals, guideline No. 104 “Vapour Pressure”, using a Cottrell ebulliometer. The test was performed at a pressure range from 48 to 125 mbar. The test was performed in triplicate. The Antoine coefficients were fitted to the measured data with the least square method.

 

Antoine coefficients log(p/mbar) = 9.659 – 3534.532/(304.836 + T(°C))

Conclusions:
Under the conditions of the test, the vapour pressure of the test substance was found to be 8.77 Pa at 25 °C and 6.00 Pa at 20°C (calculated).
Executive summary:

The vapour pressure was determined according to OECD TG 104 with the dynamic method. The vapour pressure of the test substance was found to be 8.77 Pa at 25 °C and 6.00 Pa at 20°C (calculated).

Description of key information

The vapour pressure was determined according to OECD TG 104 with the dynamic method. The vapour pressure of the test substance was found to be 8.77 Pa at 25 °C and 6.00 Pa at 20°C (calculated).

Key value for chemical safety assessment

Vapour pressure:
8.77 Pa
at the temperature of:
25 °C

Additional information