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Physical & Chemical properties

Partition coefficient

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partition coefficient
Data waiving:
study technically not feasible
Justification for data waiving:
Determination of partition coefficient n-octanol/water is technically not feasible for aluminium alkyls and not required because the substance reacts
violently during performance of the test and therefore cannot be conducted.

Description of key information

1191-15-7, diisobutylaluminium hydride,

The endpoint is waived: The substance is water reactive.

Key value for chemical safety assessment

Additional information

According to the Annex VII Standard Information Requirements for REACH, determination of partition coefficient n-octanol/water is required. Column 2 - specific rules for adaption from column 1 - states that partition coefficient n-octanol/water does not need to be determined in case substance reacts violently during the performance of the test. Aluminium alkyls are highly reactive towards oxygen (air), water and alcohols as explained below. They are exclusively marketed in liquid state and shipped under UN transport class 4.2 (substances liable to spontaneous combustion I pyrophoric liquids) or at least under class 4.3 (substances which in contact with water emit flammable gases).