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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
Study period:
2018
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Justification for type of information:
In house data, viscosity is measured and reported for a large range of different temperature values.
Qualifier:
no guideline followed
Principles of method if other than guideline:
The test sample is heated in a heating oven to around 120 °C and subsequently loaded into a preheated rheometer (Malvern, Kinexus lab+) equipped with a cup-bob geometry (Malvern, Cup C25 cylinder DIN standard SS – Bob C25 cylinder DIN standard). The program is started and the sample is conditioned for 5 min. before measurement starts. The program is set to run from 120°C to 40°C with a shear rate of 1 s-1 and a cooling rate of 1 °C/min. The program collects data points each 20 seconds throughout the run. Log to the viscosity in Pa·s is then plotted as a function of temperature in °C, giving the viscosity curve (see attached report).
GLP compliance:
not specified
Type of method:
other: Not specified.
Specific details on test material used for the study:
None specified
Key result
Temp.:
40°C
Parameter:
other: Shear viscosity
Value:
ca. 0.6
Remarks on result:
other: Pa S
Conclusions:
Shear viscosity of the registered UVCB substance "Reaction product of saturated palm kernel fatty acids and oxybispropanediol" is 0.6 PaS at 40°C.
Executive summary:

Viscosity of the UVCB substance has been studied at different temperatures ranging from ca. 40 to 120°C. Shear viscosity of the registered substance "Reaction product of saturated palm kernel fatty acids and oxybispropanediol" is 0.6 PaS at 40°C.

Description of key information

Viscosity of the UVCB substance has been studied at different temperatures ranging from ca. 40 to 120°C. Shear viscosity of the registered UVCB substance "Reaction product of saturated palm kernel fatty acids and oxybispropanediol" is 0.6 PaS at 40 °C.

Key value for chemical safety assessment

Viscosity:
600 mPa · s (dynamic)
at the temperature of:
40 °C

Additional information