Registration Dossier
Registration Dossier
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EC number: 248-372-5 | CAS number: 27253-30-1
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
Based on the solubility of lithium neodecanoate in water, a complete dissociation resulting in lithium cations and neodecanoate anions may be assumed under environmental conditions. Thus, the transport and distribution of lithium neodecanoate in the environment is most accurately evaluated by separately assessing the fate of its constituents lithium and neodecanoate.
In addition, data on lithium partitioning in suspended matter-freshwater are also available from a field study, resulting in a log Kp of 1.84. Regarding lithium partitioning in soil, a mean log Kp of 2.93 was derived in a weight-of-evidence approach based on three reliable studies. Therefore, lithium has a low mobility under relevant environmental conditions.
For neodecanoic acid, the soil adsorption coefficient Koc was estimated using KOCWIN with 121 and may be sensitive to pH. Neodecanoic acid is a weak organic acid with an estimated dissociation constant (pKa) of 4.69. Consequently, neodecanoic acid, at neutral pH, typical of most natural surface waters, is expected to dissociate to the ionised form and therefore to remain largely in water.
Key value for chemical safety assessment
Additional information
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