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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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


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Administrative data

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Description of key information

The dynamic viscosity of 2-Methylbutan-2-ol is 4.4098 mPa*s at 20 °C and 1.9688 mPa*s at 40 °C.

Key value for chemical safety assessment

4.41 mPa · s (dynamic)
at the temperature of:
20 °C

Additional information

Several reliable literature sources report the viscosity of 2-methylbutan-2-ol as results from experimental studies to be between 3,52 and 3,79 mPa s at 25°C.

REAXYS (Dikio; Bahadur; Ebenso, Journal of Molecular Liquids, 2016) reports the viscosity to be 4.4098 mPa*s at 20 °C and 1.9688 mPa*s at 40 °C.

The recent value which originates from REAXYS, 2016 which is a peer reviewed data base was chosen to be the most reliable for 2-methylbutan-2-ol.