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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 for C.I. Direct Blue 264 using the ratio of vapour pressure to water solubility revealed a value of 7.9E-31 Pa m3/mol. 

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
0
at the temperature of:
25 °C

Additional information

The Henry's Law Constant (HLC) of C.I. Direct Blue 264 was estimated to be 7.9E-31 Pa m3/mol at 25°C.

This value is below the lowermost key value foreseen/accepted in IUCLID. Therefore the lowermost foreseen/accepted value (1E-09 Pa m3/mol) was entered as key value and used for further assessment.