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Environmental fate & pathways

Henry's Law constant

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Description of key information

Henry's Law constant of threonine as the main constituent of L-threonine mother liquor was calculated using EPIWIN (v4.0), HENRYWIN (v3.20). The calculation yielded a value of  7.34E-009 Pa x m3/mole.

Key value for chemical safety assessment

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

Additional information

No data are available for L-threonine mother liquor. Henry's Law constant of threonine as the main constituent of L-threonine mother liquor was calculated using EPIWIN (v4.0), HENRYWIN (v3.20). The calculation of Henry's Law constant according to the equation H=vp/ws yielded a value of 7.34E-009 Pax m3/mole using an estimated water solubility of 2.79e+005 mg/l and a vapour pressure of 7.88E-009 mm Hg. Based on the result, threonine can be considered as practically non-volatile from aqueous solution.