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Physical & Chemical properties

Vapour pressure

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Description of key information

The vapour pressure was determined using a vapour pressure balance system with measurements being made at several temperatures and linear regression analysis used to calculate the vapour pressure at 25· C. The method used was based on Method A4 of Commission Directive 92/69/EEC (which constitutes Annex V of Council Directive 67/548/EEC).

Key value for chemical safety assessment

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

Additional information

The vapour pressure of S-900 has been determined to be 2.0 x 10-20 Pa at 25' C, this value cannot be entered into IUCLID so the smallest permissable value was entered.