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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:
2017-11-09
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Remarks:
The study was conducted in accordance with relevant test method but not in compliance with GLP
Qualifier:
according to
Guideline:
DIN 51562 Part 1 (Viscometry - Measurement of kinematic viscosity by means of the Ubbelohde viscometer - Part 1: Viscometer specification and measurement procedure)
GLP compliance:
no
Other quality assurance:
other: ISO 9001:2008
Type of method:
capillary viscometer (static)
Key result
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
1.77

Test: 1

 Capillary tube: 0a  

Correction factor: 0.005135

Measured time [s]

Measured time [s]

Measured time [s]

Measured time [s]

Measured time [s]

Mean value [s]

344

343

343

343

343

343.2

 

Calculation: time (mean value) x correction factor = viscosity = 1.7623 mm2/s

Test: 2

 Capillary tube: I  

Correction factor: 0.009860

Measured time [s]

Measured time [s]

Measured time [s]

Measured time [s]

Measured time [s]

Mean value [s]

180

179

179

180

179

179.4

 

Calculation: time (mean value) x correction factor = viscosity = 1.7689 mm2/s

 

Conclusions:
A kinematic viscosity value of 1.77 mm2/s at 20°C was determined for the substance using a relevant test method. The result is considered to be reliable.

Description of key information

Viscosity: 1.77 mm2/s at 20°C (DIN 51562)

Key value for chemical safety assessment

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

Additional information

A kinematic viscosity value of 1.77 mm2/s at 20°C was determined for the substance using a relevant test method and in compliance with a known quality system (ISO 9001:2008). The result is considered to be reliable.

The key study is supported by a predicted kinematic viscosity value of 1.7 mm2/s at 20°C which was determined for the substance using a validated QSAR estimation method.

In an available secondary source to which reliability could not be assigned, a dynamic viscosity value of 2 mPa.s at 20°C was reported for the substance.