Registration Dossier
Registration Dossier
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EC number: 209-090-8 | CAS number: 555-31-7
Endpoint summary
Administrative data
Description of key information
Stability
Aluminium tri-isopropanolate reacts instantaneously with water to form iso-propanol and Al3+ species. The resulting pH being weakly alkaline indicates according to Langmuir et al. 2004 that the Al3+ species formed are mainly Al(OH)4-, Al(OH)3 and Al(OH)2+ at pH 8.5.Thus, aluminium tri-isopropanolate is abiotically degradable and forms iso-propanol being readily biodegradable as shown in the registration dossier of isopropanol submitted by the same registrant.
Biodegradation
Testing of aluminium tri-isopropanolate for biodegradation is technically not feasible as the substance immediately dissociates to Al3+ species and iso-propanol upon contact with water or moisture. Iso-propanol is known to be rapidly biodegradable as demonstrated by the supportive study with a BOD5/COD ration > 0.5. Thus the organic moiety of the test substance is considered rapidly biodegradable.
Transport and Distribution
In accordance with column 2 of REACH Annex VIII, the adsorption/desorption screen (required in section 9.3.1) does not need to conducted as the substances immediately hydrolyses upon contact with water and the organic moiety isopropanol that is of low toxicity and rapidly biodegradable. In absence of data on sediment and terrestrial organisms, it is assumed that the aluminium species remain in the water phase. The logKoc is set at 0.
Additional information
Bioaccumulation
In accordance with column 2 of REACH Annex IX, the aquatic bioaccumulation study (required in section 9.3.2) does not need to be conducted as the substances organic moiety 2 -propanol has a log Kow ≤ 3 (logKow 2-propanol = 0.05). The same applies to terrestrial bioaccumulation. Thus, bioaccumulation is not expected.
Further studies on environmental fate are not required.
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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