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EC number: - | CAS number: -
Viscosity
Administrative data
Link to relevant study record(s)
- Endpoint:
- viscosity
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Test Guideline 114 (Viscosity of Liquids)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- rotational viscometer (dynamic)
- Key result
- Temp.:
- 20°C
- Parameter:
- dynamic viscosity (in mPa s)
- Value:
- 1 200 000
- Temp.:
- 40°C
- Parameter:
- dynamic viscosity (in mPa s)
- Value:
- 150 000
Reference
The test material was found to be Newtonian in its flow behaviour under the specified test conditions (see Table 1).
Table 1: Determination of viscosity at varied spindle speed
Spindle speed (rpm) | Viscosity (mPa.s) | |||
| 20 °C | 40 °C | ||
| Sample A | Sample B | Sample A | Sample B |
0.50 | 1288000 | 1200000 | -- | -- |
0.60 | 1280000 | 1200000 | -- | -- |
1.00 | 1272000 | 1192000 | -- | -- |
1.50 | 1259000 | 1181000 | -- | -- |
2.00 | 1246000 | 1166000 | -- | -- |
2.50 | 1237000 | 1155000 | -- | -- |
3.00 | 1228000 | 1147000 | 153300 | 146700 |
4.00 | -- | -- | 153000 | 145000 |
5.00 | -- | -- | 153600 | 144800 |
10.0 | -- | -- | 152400 | 143600 |
20.0 | -- | -- | 148400 | 140000 |
20.0 | -- | -- | 150000 | 141000 |
10.0 | -- | -- | 152800 | 144000 |
5.00 | -- | -- | 153600 | 145600 |
4.00 | -- | -- | 154000 | 147000 |
3.00 | -- | -- | 153300 | 146700 |
2.50 | 1242000 | 1160000 | -- | -- |
2.00 | 1250000 | 1172000 | -- | -- |
1.50 | 1261000 | 1179000 | -- | -- |
1.00 | 1272000 | 1188000 | -- | -- |
0.60 | 1280000 | 1200000 | -- | -- |
0.50 | 1296000 | 1208000 | -- | -- |
Description of key information
1'200'000 mPa.s at 20°C and 150'000 mPa.s at 40°C (OECD 114)
Key value for chemical safety assessment
- Viscosity:
- 120 000 mPa · s (dynamic)
- at the temperature of:
- 20 °C
Additional information
The test material showed Newtonian flow behaviour under the test conditions.
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