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EC number: 701-425-0 | CAS number: -
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 08 February 2018 to 27 February 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- pycnometer method
- Type:
- relative density
- Density:
- 1.03 other: unitless
- Temp.:
- 20 °C
- Conclusions:
- The relative density of the test item was determined to be 1.03 at 20 °C.
- Executive summary:
The relative density of the test item was determined in a OECD 109 and EC Method A.3 guideline study using the pycnometer method. The relative density of the test item was determined to be 1.03 at 20 °C.
The study is a GLP compliant guideline experimental study full acceptable for assessment of this endpoint.
Reference
Table 1: Results of relative density study
| Parameter | Replicate 1 | Replicate 2 |
| w1 | 24.00872 | 25.01866 |
| w2 | 48.98833 | 49.73388 |
| w3 | 44.28862 | 45.08078 |
| w4 | 27.00086 | 28.05171 |
| w5 | 44.92596 | 45.72444 |
| W1 | 24.97961 | 24.71522 |
| W2 | 20.27990 | 20.06212 |
| W3 | 2.99214 | 3.03305 |
| W4 | 17.92510 | 17.67273 |
| W5 | 2.35480 | 2.38939 |
| ptl | 0.81023 | 0.81011 |
| Mean ptl | 0.81017 | |
| Vs | 2.907 | 2.949 |
| Dt4 | 1.029 | 1.028 |
| Mean Dt4 | 1.03 | |
Where:
w1= weight of empty pycnometer (g)
w2= weight of pycnometer and water (g)
w3= weight of pycnometer and displacement liquid (g)
w4= weight of pycnometer and test item (g)
w5= weight of pycnometer, test item and displacement liquid (g)
W1 = Mass of water to fill pycnometer
W2 = Mass of displacement liquid to fill pycnometer
W3 = Mass of test item added to pycnometer
W4 = Mass of displacement liquid required to fill pycnometer containing W3g of test item
W5 = Mass of displacement liquid equivalent to W3g of test item
ptl= density of displacement liquid at temperature of determination (g/mL)
Dt4= relative density of test item at test temperature compared to water at 4°C
Description of key information
The relative density of the test item was determined to be 1.03 at 20 °C.
Key value for chemical safety assessment
- Relative density at 20C:
- 1.03
Additional information
The relative density of the test item was determined in a OECD 109 and EC Method A.3 guideline study using the pycnometer method (Dunning 2018).
The study is a GLP compliant guideline experimental study full acceptable for assessment of this endpoint.
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