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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:
2015-03-16
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Remarks:
The study was conducted according to an appropriate test method and in compliance with a known quality system (ISO 9001:2008)
Qualifier:
equivalent or similar to
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Version / remarks:
DIN 51562
Deviations:
not specified
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:
0.585

Test: 1

Capillary tube: 0c

Correction factor 0.003144

 

Measured time [s]

Measured value [s]

184

184

184

184

184

184

 

Calculation: time (mean value) x correction factor = viscosity

Viscosity [mm2/s] = 0.5785

 

Test: 2

Capillary tube: 0a

Correction factor 0.004936

 

Measured time [s]

Measured value [s]

122

120

119

119

119

120

 

Calculation: time (mean value) x correction factor = viscosity

Viscosity [mm2/s] = 0.5923

 

Mean viscosity at 20°C [mm2/s]= 0.585

Conclusions:
A viscosity value of 0.585 mm2/s at 20°C was obtained for the substance using a relevant test method. The result is considered to be reliable.

Description of key information

Viscosity: 0.585 mm²/s at 20°C (static) (DIN 51562)

Key value for chemical safety assessment

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

Additional information

A measured kinematic viscosity value of 0.585 mm2/s at 20°C was obtained for the substance using a Ubbelohde viscosimeter in accordance with DIN 51562 test method. The result is considered to be reliable and is selected as key study.

 

In a second study, kinematic viscosity value of 0.55 mm²/s at 25°C was measured for the substance using relevant test methods. Although, full details are not available, the result is considered reliable. Similarly, a predicted kinematic viscosity value0.7 mm2/s at 20°C of was determined for the substance using a validated QSAR estimation method.

 

In a secondary source to which reliability could not be assigned, a dynamic viscosity value of 0.6 mPa.s at 25°C was reported for the substance.