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Environmental fate & pathways

Henry's Law constant

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Reference
Endpoint:
Henry's law constant
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
supporting study
Study period:
no data
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Qualifier:
equivalent or similar to guideline
Guideline:
other: no guideline reported
Principles of method if other than guideline:
Estimated by calculation based on water solubility (136 g/L at 20 °C) and a vapour pressure of Ps = 9.975*10^-8 hPa.
GLP compliance:
no
Key result
H:
0 Pa m³/mol
Temp.:
20 °C
Conclusions:
The Henry constant for thiourea was estimated by calculation: H = 5.58E-09 Pa m³/mol. Therefore, thiourea is considered to be non-volatile from aqueous solutions.
Executive summary:

The Henry constant of thiourea was estimated by calculation based on the substance's water solubility (136 g/L at 20 °C) and a vapour pressure of Ps = 9.975*10^-8 hPa: H = 5.58E-09 Pa m³/mol. Therefore, thiourea is considered to be non-volatile from aqueous solutions.

Description of key information

Based on the Henry constant, thiourea is considered to be non-volatile.

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
0
at the temperature of:
20 °C

Additional information

The Henry constant of thiourea was estimated by calculation based on the substance's water solubility (136 g/L at 20 °C) and a vapour pressure of Ps = 9.975*10^-8 hPa: H = 5.58E-09 Pa m³/mol. Therefore, thiourea is considered to be non-volatile from aqueous solutions.