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Physical & Chemical properties

Vapour pressure

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Description of key information

Experimental vapour pressure of the test item at 20°C : 2.3*10-8Pa

Key value for chemical safety assessment

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

Additional information

The determination of the vapour pressure was performed using a Knudsen effusion method coupled to a micro-balance

accordingMethod A.4 "Vapour Pressure"of Commission Regulation (EC) No 440/2008 of 30 May 2008, Method 104 "Vapour Pressure Curve" of OECD Guideline and GLP. No deviation from the guidelines was observed during the test.

Before determination of the vapour pressure of the test item, the accuracy of the Knudsen cell was assessed using an Ametryn reference standard. The vapour pressure was determined to be 4.1*10-4Pa at 25 °C and theoretical value of vapour pressure of the test item was 3.65*10-4Pa at 25 °C. The Knudsen cell was therefore considered acceptable for use.

The vapour pressure of the test item extrapolated at 20 °C is 2.3*10-8Pa.Based on these results, the test item is considered not very volatile.