Registration Dossier
Registration Dossier
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EC number: 284-895-5 | CAS number: 84989-06-0 The fraction of tar acids, rich in 2,4- and 2,5-dimethylphenol, recovered by distillation of low-temperature coal tar crude tar acids.
Viscosity
Administrative data
Link to relevant study record(s)
- 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
- Guideline:
- OECD Test Guideline 114 (Viscosity of Liquids)
- Qualifier:
- according to guideline
- 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
- 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:
- 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
Referenceopen allclose all
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
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.
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