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Viscosity

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Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Qualifier:
according to guideline
Guideline:
DIN 53019 Part 1 (Viscometry - Measurement of viscosities and flow curves by means of rotational viscometers - Part 1: Principles and measuring geometry)
GLP compliance:
no
Type of method:
rotational viscometer (dynamic)
Specific details on test material used for the study:
- Name of test material (as cited in study report): Composite Sample No. 7, Anthracene Oils ≤ 50 ppm BaP
- Lot/batch No.: ATE-10443 - the value reported in the Certificate (ATE-10434) is a missprint
Key result
Temp.:
other: 100.0°C
Parameter:
dynamic viscosity (in mPa s)
Value:
2.4
Key result
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Remarks on result:
not determinable
Remarks:
the substance is solid at the standard temperature of 40°C
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Qualifier:
according to guideline
Guideline:
DIN 53019 Part 1 (Viscometry - Measurement of viscosities and flow curves by means of rotational viscometers - Part 1: Principles and measuring geometry)
GLP compliance:
no
Type of method:
rotational viscometer (dynamic)
Specific details on test material used for the study:
- Name of test material (as cited in study report): Anthracenöl N45 Tank 2548
- Physical state: liquid
- Lot/batch no. ATE-10120
Key result
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
14.9
Remarks on result:
other: this AOL type is liquid at 40°C and thus different from CCSG composite sample 07, which is solid at 40°C
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
Guideline:
ASTM D-445 (Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
Qualifier:
according to guideline
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Principles of method if other than guideline:
kinematic viscosity, according ASTM 445-06
GLP compliance:
no
Type of method:
capillary viscometer (static)
Specific details on test material used for the study:
- Name of test material (as cited in study report): Anthracenový olej I/II (REACH 31.1.08)
Key result
Temp.:
other: 120.0°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
1.5
Remarks on result:
other: two measurements
Key result
Temp.:
other: 80.0°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
5
Remarks on result:
other: two measurements
Conclusions:
The kinematic viscosity of the test material anthracene oil (CCSG composite sample 07) (anthracene oil with < 50 ppm BaP, AOL) was determined in replicate experiments at 120 and 80 °C according to guideline ASTM 445-06. The kinematic viskosity was 1.5 and 5.0 mm²/s at 120 and 80 °C, respectively.

Description of key information

The viscosity of anthracene oil (CCSG composite sample 07, ATE 10443) could not be determined at the standard temperature (20 and 40 °C) of the test method, because the material is solid at this temperatures. For another batch of anthracene oil (ATE 10120) being fluid at the higher test temperature (40 °C), a dynamic viscosity of 14.9 mPa*s was measured.

Key value for chemical safety assessment

Viscosity:
14.9 mPa · s (dynamic)
at the temperature of:
40 °C

Additional information

Different batches of anthracene oil can have different melting points due to the UCVB nature of the substance. The dynamic viscosity of anthracene oil at 40 °C was determined using the batch ATE 10120 (see above). For anthracene oil (CCSG composite sample 07, ATE 10443), the viscosity had to be determined at temperatures 80 °C. The dynamic viscosity according to DIN 53019 was measured to be 2.4 mPas at 100 °C. The kinematic viscosity (ASTM 445-08) was shown to be 5 and 1.5 mm²/s at 80 and 120 °C, respectively.