Registration Dossier
Registration Dossier
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The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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EC number: 939-867-3 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Additional information
Abiotic degradation
In general, phototransformation and hydrolysis are the main abiotic degradation pathways for a substance. Mn(II)IDHA is neither susceptible for phototransformation in air, water and soil nor for hydrolysis under environmental conditions. Only the cation (Mn2+) will undergo hydrolysis at pH < 7 resulting in the formation of metal hydroxides [Mn(OH)2]. In general, experimental investigations are not triggered for a registration under REACH.
Biotic degradation
Mn(2Na)IDHA was identified to be "inherently biodegradable" (Chojnacka, 2014). In addition to that, the substance was found to be potentially biodegradable by Cokese et al. (2004). Conclusively, the substance will be degraded when entering the environmental compartment and therefore will not be persistent.
Bioaccumulation
Bioaccumulation in aquatic organisms is not expected for Mn(II)IDHA. The first indication for that conclusion is given by the substance specific logPow of -2.69 at 23 °C (experimentally determined; Stegient-Nowicka, 2013). Bioaccumulation is expected for substances possessing a partition coefficient in the range of 4.5 to 6 according to ECHA Guidance R.11, PBT Assessment).
Transport and distribution
Soil adsorption is not expected for Mn(II)IDHA based on the intrinsic physico-chemical properties, i.e. logPow of -2.69 (Stegient-Nowicka, 2013).
The QSAR prediction with KOCWIN v2.00 (logKoc = 1.00 L/kg; Chemservice S.A., 2014) reveals that the substance possesses no strong binding capacity towards soil.
Henry´s Law constant was manually calculated and amounts to 2.37 E-8 Pa*m3*mol-1 at 20 °C (Chemservice S.A., 2014). This value, as well as the key value of the Koc determination, will be taken into account for the chemical safety assessment (CSA), i.e. PNECsediment and PNECsoil derivation via the equilibrium partitioning method (EPM).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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