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Environmental fate & pathways

Henry's Law constant

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Description of key information

The calculation of the Henry's Law constant of tetrabutyl urea according to HENRYWIN v3.20 yielded values of 0.0257 and 3.58 Pa x m³/mole at 25°C using the bond method and the equation H=vp/ws, repectively.

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
3.58
at the temperature of:
25 °C

Additional information

Henry's Law constant was calculated via EPIWIN v4.00, HENRYWIN v3.20. The calculation yielded a value of 0.0257 Pa x m³/mole at 25°C using the bond method. The calculation of Henry's Law constant according to the equation H=vp/ws and using EPIWIN estimates resulted in a Henry's Law constant of 3.58 Pa x m³/mole.