Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Water solubility

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Administrative data

Link to relevant study record(s)

Description of key information

The substance is marketed and used as aqueous solution(s) of tetraethylammonium hydroxide at concentrations of max. 35 wt%. From this it is concluded that TEAH is very soluble in water (at least 350 g/L).  The marketed aqueous solutions are miscible with water. No water solubility study was performed.

Key value for chemical safety assessment

Water solubility:
350 g/L
at the temperature of:
20 °C

Additional information

Key value for tetraethylammonium hydroxide: 350 g/L

Key value for the registered substance: miscible