Registration Dossier
Registration Dossier
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EC number: 232-051-1 | CAS number: 7784-18-1
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
In accordance with section 2 of REACH (Regulation (EC) No 1907/2006) Annex XI, the adsorption / desorption study (required in Annex VIII section 9.3.1) and further information on adsorption/desorption study (required in section 9.3.3 do not need to be conducted as it is technically not feasible to conduct either of EC 440-2008 methods C.18 or C.19 on the substance.
Key value for chemical safety assessment
Additional information
C.18 Adsorption / Desorption Using a Batch Equilibrium Method is not technically feasible as it requires the use of large volumes of 0.01 M calcium chloride. According to Moore & Ritchie (Journal of Soil Science, 1988, 39, pp. 1-8) a large volume of calcium chloride could disturb the balance of the aluminium and fluoride species in the soil solution by displacing aluminium from soil surfaces.
C.19 Estimation of the Adsorption Coefficient (Koc) on Soil and on Sewage Sludge Using High Performance Liquid Chromatography (HPLC) is not technically feasible as it has not been validated for inorganic compounds.
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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