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Henry's law constant
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
supporting study
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method

Data source

Materials and methods

Results and discussion

Applicant's summary and conclusion

Executive summary:

HENRY'S LAW CONSTANT (HLC) The HLC of C20/22 ATQ can be calculated from vapour pressure (IUCLID Section 4.6) water solubility (IUCLID Section 4.8). The Exposure assessment tool EUSES 2.1 recalculates the HLC of 3.6*E-3 Pa*m3*mol-1at 25 degree C to 1.7*E-3 Pa*m3*mol-1at the environmental temperature of 12 degree C. The dimensionless air-water partitioning coefficient is calculated to 7.4*E-7 m3/m3. The HLC shows that volatilisation of C20/22 ATQ from aqueous solutions is very low.