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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Description of key information

The OECD harmonized ring method in accordance with EC A.5 and OECD 115 and in compliance with GLP was performed with a 1 g/L aqueous solution of tetraethylammonium hydroxide that was prepared from a 35% aqueous solution of tetraethylammonium hydroxide.  The surface tension at 1 g TEAH/L at 20°C has been determined as 72.5 mN/m. Because the measured value is not < 60 mN/m (criteria in EC A.5 guideline), tetraethylammonium hydroxide is not surface active. 

Key value for chemical safety assessment

Additional information

Key value for tetraethylammonium hydroxide: 72.5 mN/m at 20°C at 1000 mg/L

Key value for the registered substance: not applicable