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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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.

Diss Factsheets

Physical & Chemical properties

Surface tension

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
surface tension
Data waiving:
study technically not feasible
Justification for data waiving:
other:
Conclusions:
Determination of surface tension is technically not feasible and not required for magnesium alkyls because surface activity is not a desired property.

Description of key information

62202-86-2, butylethylmagnesium,

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 surface tension is required. Column 2 – specific rules for adaption from column 1 – states that surface tension does not need to be determined in case surface activity is not a desired property of the material.

Magnesium alkyls are highly reactive both towards oxygen (air) and water as explained below. Almost all magnesium alkyls are infusible solids, however, because of difficulties in handling undiluted magnesium alkyl and the manufacturing processes used, they are exclusively marketed in liquid state (hydrocarbon solutions) and shipped under UN transport class 4.2 (substances liable to spontaneous combustion / pyrophoric liquids) or at least under class 4.3 (substances which in contact with water emit flammable gases).