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EC number: 218-235-4
CAS number: 2090-05-3
Metal carboxylates are salts consisting of metal cation and
carboxylic acid anion. Based on the solubility of calcium dibenzoate in
water, a complete dissociation resulting in calcium and benzoate ions
may be assumed under environmental conditions. The respective
dissociation is in principle reversible and the ratio of the salt
/dissociated ions is dependent on the metal-ligand dissociation constant
of the salt, the composition of the solution and its pH.
However, under environmental conditions, a reunion of the dissociated
ions is highly unlikely and it may reasonable be assumed that the
respective behaviour of the dissociated calcium cations and benzoate
anions in the environment determine the fate of calcium dibenzoate upon
dissolution with regard to (bio)degradation, bioaccumulation,
partitioning resulting in a different relative distribution in
environmental compartments (water, air, sediment and soil) and
subsequently its (eco)toxicological potential.
In the assessment of environmental fate of calcium dibenzoate,
read-across to the assessment entities soluble calcium substances and
benzoic acid is applied since the ions of calcium dibenzoate determine
its environmental fate. Since calcium ions and benzoate ions behave
differently in the environment, in respect of stability, degradation,
transport and distribution, a separate assessment of the environmental
fate of each assessment entity is performed. Please refer to the data as
submitted for each individual assessment entity.
In order to evaluate environmental fate of the substance calcium
dibenzoate, information on the assessment entities calcium cation and
benzoate anion is considered. For a documentation and justification of
that approach, please refer to the separate document attached to section
13, namely Read Across Assessment Report for calcium dibenzoate.
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.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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