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EC number: 926-809-7 | 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:
- 17 April 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:
- 1.26 other: unitless
- Temp.:
- 20 °C
- Conclusions:
- The relative density of the test item was determined to be 1.26 at 20 °C.
- Executive summary:
The relative density of the test item was determined in a study following OECD 109 and EC Method A.3 guidelines, using the pycnometer method. The relative density of the test item was determined to be 1.26 at 20 °C.
The study is a GLP compliant, guideline experimental study and is fully acceptable for assessment of this endpoint.
Reference
Table 1: Results of relative density testing
| Parameter | Replicate 1 | Replicate 2 |
| w1 | 24.82255 | 24.60269 |
| w2 | 49.39726 | 49.67888 |
| w3 | 44.75187 | 44.93915 |
| w4 | 27.83254 | 27.61177 |
| w5 | 45.81812 | 46.01799 |
| W1 | 24.57471 | 25.07619 |
| W2 | 19.92932 | 20.33646 |
| W3 | 3.00999 | 3.00908 |
| W4 | 17.98558 | 18.40622 |
| W5 | 1.94374 | 1.93024 |
| pTl | 0.8093 | 0.8094 |
| Mean pTl | 0.8094 |
|
| Vs | 2.402 | 2.385 |
| DT4 | 1.25 | 1.26 |
| Mean DT4 | 1.26 |
|
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 1.26 at 20 °C.
Key value for chemical safety assessment
- Relative density at 20C:
- 1.26
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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