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Physical & Chemical properties

Viscosity

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Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Version / remarks:
Oct 2012
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
rotational viscometer (dynamic)
Key result
Temp.:
20°C
Parameter:
dynamic viscosity (in mPa s)
Value:
54 000
Key result
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
8 000

Results are presented in the attached document "Figures and Tables - Viscosity.pdf".

There was no significant time dependence for the viscosity (Figures 1 and 2).

At both temperatures, the test item showed insignificant decrease in viscosity with increasing spindle speed (shear rate) (Figures 3 and 4 and Tables 1 and 2). This type of behaviour indicates that the test item is a Newtonian fluid.

Description of key information

54000 mPa.s at 20 °C and 8000 mPa.s at 40 °C (OECD114)

Key value for chemical safety assessment

Viscosity:
54 000 mPa · s (dynamic)
at the temperature of:
20 °C

Additional information

The test material showed Newtonian flow behaviour under the test conditions.