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Environmental fate & pathways

Henry's Law constant

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Description of key information

The calculated Henry's Law constant is 7150 Pa m³/mol

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
7 150
at the temperature of:
20 °C

Additional information

The Henry's Law constant of 1,3-butadiene has been calculated by a QSAR model with two modules recommended by ECHA (2008) Guidance on information requirements and chemical safety assessment R7a Endpoint specific guidance. The calculated values indicate that volatilisation from water is expected to occur at a rapid rate.