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Physical & Chemical properties

Viscosity

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Link to relevant study record(s)

Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Valid method for the determination of the viscosity, purification of the substance conduced, good number of data points, good experimental details (referenced), and equipment calibration details.
Qualifier:
no guideline followed
Principles of method if other than guideline:
other: measured with Ostwals vicometer, no reference to specific guideline reported.
GLP compliance:
not specified
Type of method:
capillary viscometer (static)
Temp.:
other: 27.0°C
Parameter:
dynamic viscosity (in mPa s)
Value:
53.3
Temp.:
other: 30.0°C
Parameter:
dynamic viscosity (in mPa s)
Value:
43.4
Temp.:
other: 35.0°C
Parameter:
dynamic viscosity (in mPa s)
Value:
32.4

Up to 20 °C no vicosity has been measured because the test item was at solid state.

Description of key information

53.3 mPa · s at 27 °C, 43.4 mPa · s at 30 °C, 32.4 mPa · s at 35 °C, Ostwald viscometer, Shinomiya (1990)

Key value for chemical safety assessment

Viscosity:
53.3 mPa · s (dynamic)
at the temperature of:
27 °C

Additional information

The viscosity of the test item was measured with an Ostwald viscometer and the results found to be of sufficient quality for use (Shinomiya 1990).

The value of 53.3 mPa · s is taken forward for the purposes of risk assessment, as being most representative of the commercial substance. The available data is considered to be relevant, reliable, and adequate for risk assessment purposes. The endpoint is complete, in accordance with Regulation (EC) No. 1907/2006, Annex XI, 1.1.1.

Further endpoint study records from a previous registrant have been included, however, as they are secondary sources only, open to data recycling and contain insufficient information, they could not be considered reliable and are only included for completeness.