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Physical & Chemical properties

Viscosity

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Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Qualifier:
according to
Guideline:
ASTM D-445 (Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
GLP compliance:
not specified
Type of method:
capillary viscometer (static)
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
17.44

Average kinematic viscosity: 17.44 ± 0.01 mm²/s at 20 °C

Measurement 1: 17.44 mm²/s

Measurement 2: 17.44 mm²/s

Measurement 3: 17.45 mm²/s

Standard deviation: 17.44 mm²/s

Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Qualifier:
according to
Guideline:
other: DIN 53018
GLP compliance:
no
Type of method:
rotational viscometer (dynamic)
Temp.:
other: 30.0°C
Parameter:
dynamic viscosity (in mPa s)
Value:
10.4
Endpoint:
viscosity
Type of information:
calculation (if not (Q)SAR)
Remarks:
estimated by calculation
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Calculated based on Grains calculation based on results for pure substances present in the mixture
Qualifier:
no guideline available
Principles of method if other than guideline:
Grains calculation based on the data for pure substances present in the mixture
GLP compliance:
no
Type of method:
other: Calculation
Temp.:
other: 50.0°C
Parameter:
dynamic viscosity (in mPa s)
Value:
3.5

Description of key information

kinematic viscosity 17.44 mm²/s at 20 °C (OECD 114, capillary method)

dynamic viscosity 10.4 mPa.s at 30 °C (DIN 53018), 3.5 mPa.s at 50 °C (calculated based on results for pure substances present in the mixture)

Key value for chemical safety assessment

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

Additional information

The viscosity of Tar acids, xylenol fraction varies depending on the ratio of constituents in the substance. Viscosity values have been reported at 20 °C and at higher temperature values for some materials.