Registration Dossier
Registration Dossier
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EC number: 941-453-2 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Additional information
No data is 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 Pa x 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.
Experimental studies on adsorption/desorption of L-threonine mother liquor are not available.
According to REACH Regulation (Annex VIII, 9.3.1, column II), the study on adsorption/desorption does not need to be done if the the test material is readily biodegradable. Biofert Plusz (mixture of L-threonine mother liquor and modified waste) proved to be readily biodegradable. Based on the composition of Biofert Plusz this statement applies likewise to the test material under investigation (L-threonine mother liquor).
L-Threonine mother liquor is a complex mixture containing organic and inorganic components (UVCB-substance). Based on the log Kow of the lead component L-threonine of L-threonine mother liquor (-2.94; Hansch, 1995) the sorption onto sediment organic matter is expected to be negligible.Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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