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Physical & Chemical properties

Vapour pressure

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Description of key information

- Measured value of the aqueous solution:

21.8 hPa at 20°C

 

- Calculated value of the main component:

0.43 hPa at 20°C

Key value for chemical safety assessment

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

Additional information

The vapour pressure of the aqueous solution was determined by static method according to OECD Guideline 104 and the calculation was using the software SPARC.

As the test substance is UVCB therefore the vapour pressure values of the individual component (calculated and literature values) were reviewed and evaluated. It is reasonable no doubt that the measured value of the aqueous solution is likely related to vapour pressure of the water (23 hPa at 20°C).

The vapour pressure of the main component was calculated to be in the range from 0.00 to 0.43 hPa at 20°C. It can be suggested that the value of 0.43 is considered to be as worse-case and is used for the CSA.