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Environmental fate & pathways

Henry's Law constant

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Description of key information

The calculated HLC value for 2-(3,4-epoxycyclohexyl)ethyltriethoxysilane at environmental temperature (12°C) is 6.43E-02 Pa m3 mol-1 (taken from EUSES 2.1.2).

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
0.064
at the temperature of:
12 °C

Additional information

The transfer of a substance from the water phase to the gas phase can be estimated by means of the Henry’s Law Constant (HLC). No measured value for this parameter is available. The HLC can be estimated from the ratio of the vapour pressure to the water solubility:

HLC = VP x MW / WS

HLC = 0.3 Pa (20°C) x 288 g /mol/0.85 g/l (20°C) = 101.65 Pa x mol-1 x l = 0.102 Pa m3 mol-1 (20°)

The calculated HLC value for 2-(3,4-epoxycyclohexyl)ethyltriethoxysilane at environmental temperature (12°C) is 6.43E-02 Pa m3 mol-1 (taken from EUSES 2.1.2).