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Diss Factsheets

Physical & Chemical properties

Viscosity

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 16 June, 2008 to 20 June, 2008
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: CIPAC guideline, MT 22, Viscosity
Qualifier:
according to guideline
Guideline:
other: DIN 51562: "viscometry of the kinematic viscosity by means of the Ubbelohde viscometer"
GLP compliance:
yes (incl. QA statement)
Type of method:
capillary viscometer (static)
Key result
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
30.2
Key result
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
22.3
Conclusions:
Under the test conditions, the kinematic viscosity of the 33.6% solution of the substance was determined to be 30.2 and 22.3 mm2/sec at 20 and 40°C, respectively.
Executive summary:

A study was conducted to determine the viscosity of the test substance, TMAC C, according to OECD 114 Guideline using the capillary viscometer at 20 and 40°C, in compliance with GLP. For every temperature, three test series were performed. Each test series consisted of five to ten tests. The test substance was filled into the capillary viscometer and the efflux time was measured. Due to foamy property of the test substance an automatic measurement by means of the viscometer was only possible for one measurement at 40⁰C. The flow time of all measurements was measured by a stop watch. For calculation of the kinematic viscosity, average value of the efflux time was taken. Under the test conditions, the kinematic viscosity of the 33.6% solution of the test substance was determined to be 30.2 and 22.3 mm2/sec at 20 and 40°C, respectively (Krack, 2008).

Description of key information

Under the test conditions, the kinematic viscosity of the 33.6% solution of the substance was determined to be 30.2 and 22.3 mm2/sec at 20 and 40°C, respectively. 

Key value for chemical safety assessment

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

Additional information

The viscosity was determined using a capillary viscometer according to OECD Guideline 114 (Krack, 2008).