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Environmental fate & pathways

Henry's Law constant

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Description of key information

Henry’s Law Constant:
Henry LC: 3.22E-004 Pa m³/mol at 25°C (HENRYWIN v3.2, Bond method)
Henry LC: 4.317E-002 Pa m3/mol at 25°C (HENRYWIN v3.20, via VP/WSol)
Volatilisation from water (Epiweb 4.0 (EPI SuiteTM), Henry LC: 2.35E-008 atm m3/mol):
Half-Life from Model River: 3.595E+004 hours (1498 days)
Half-Life from Model Lake: 3.923E+005 hours (1.635E+004 days)

Key value for chemical safety assessment

Additional information

There are no experimental data on volatilisation for anthraquinone.

The Henry’s Law Constant estimated with HENRYWIN v3.2 for anthraquinone has been calculated to be 3.22E-004 Pa m³/mol (Bond method) at 25°C (Ekotoxikologické centrum Bratislava, s.r.o., 2010).

Estimation using the latest version of HENRYWIN v. 3.20 via VP/WSol (vapour pressure VP = 1.16E-007 mm Hg /water solubility WSol = 0.0746 mg/L) gave the result 4.317E-002 Pa m3/mol at 25°C (Ekotoxikologické centrum Bratislava, s.r.o., 2011).

Estimated data from Epiweb 4.0 (EPI SuiteTM) for volatilization from water considering Henry LC: 2.35E-008 atm m3/mol - Henry experimental database are (Ekotoxikologické centrum Bratislava, s.r.o., 2010):

Half-Life from Model River: 3.595E+004 hours (1498 days)

Half-Life from Model Lake: 3.923E+005 hours (1.635E+004 days)