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Physical & Chemical properties

Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
GLP compliance:
yes
Type of method:
effusion method: vapour pressure balance
Key result
Temp.:
25 °C
Vapour pressure:
0.38 Pa
Conclusions:
The vapour pressure was determined to be 0.38 Pa at 25 °C.
Executive summary:

The vapour pressure of the test item has been determined using a method designed to be compatible with that specified in the current OECD Guidelines for Testing, Guideline No. 104 (OECD, 2006). The vapour pressure of the test item was determined to be 0.38 Pa at 25 °C. A slight, but gradual drop in vapour pressure was then observed on repeated temperature cycling of the test item over the range 28 to 38 °C (under vacuum), with individual values in the range 0.29 to 0.21 Pa for ten consecutive runs. Such characteristics, indicative of the gradual reduction of the more volatile fractions in the test item, was as anticipated based on the fact that the test item contains Bis(2-ethylhexylthioglycolate) dimethyl tin and thio ester as impurities. To provide representative data for risk assessment on potential atmospheric emissions of the test item, the initial, highest value obtained was taken as the definitive result.

Description of key information

Vapour pressure 0.38 Pa at 25 °C

Key value for chemical safety assessment

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

Additional information

The vapour pressure of the test item has been determined using the current OECD Guidelines for Testing, Guideline No. 104 (OECD, 2006). The vapour pressure of the test item was determined to be 0.38 Pa at 25 °C.