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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Description of key information

Viscosity o-tert-butylphenol at 20.0 °C: 14.7 mm²/s (kinematic)and at 40.0 °C: 5.8 mm²/s (kinematic)

Key value for chemical safety assessment

14.7 mm²/s (static)
at the temperature of:
20 °C

Additional information

In a reliable (Klimisch 1) study by Spilker (2009), the kinematic viscosity of o -tert-butylphenol was determined according to ISO 3104 (kinematic viscosity). The viscosity was measured by means of a capillary viscosimeter (Ubbelohde Type I c and Type I) at two different temperatures. The kinematic viscosity of o -tert-butylphenol was determined to be 14.7 mm²/s at 20.0 °C, resp. 5.8 mm²/s at 40.0 °C.

In a reliable (Klimisch 1) study by Geringhoff (2009), the viscosity of o-tert-butylphenol was determined according to DIN 53019 (Rotational viscosity). Study results indicate the dynamic viscosity of <20 mPa s at both 20 and 40 °C.