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Vapour pressure

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vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1997-11-03 to 1997-12-15
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
according to guideline
EU Method A.4 (Vapour Pressure)
Version / remarks:
Directive 92/69/EEC, A.4.
not specified
GLP compliance:
Type of method:
effusion method: vapour pressure balance
20 °C
Vapour pressure:
< 0 hPa
Remarks on result:
other: temperature range between 20 and 150 °C

Precautionary a Different Scanning Calorimetry was done. The test substance shows an endothermic effect beginning at 160°C and an exothermic decomposition after.

In the temperature range between 19.8 °C and 150.4 °C no increase in weight and therefore no vapour pressure of the test substance was registered with the balance.

A vapour pressure value of lower than 0.00001 hPa was determined between 20 and 150 °C in a reliable study conducted according to EU method A.4.
Executive summary:

The vapour pressure of the test item was determined according to EU method A.4. and is 0.00001 hPa in the temperature range between 20 and 150 °C. No increase in weight was registered on the balance within this temperature range and therefore no increase in vapour pressure could be detected.

Description of key information

The test item has a vapour pressure of lower than 0.00001 hPa between 20 and 150 °C.

Key value for chemical safety assessment

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

Additional information