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EC number: 228-067-3 | CAS number: 6107-56-8
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 02 May 2018 to 25 May 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:
- 1.12 other: unitless
- Temp.:
- 20 °C
- Conclusions:
- The relative density of the test item was determined to be 1.12 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 1.12 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 study
| Parameter | Replicate 1 | Replicate 2 |
| w1 | 24.82253 | 24.60289 |
w2 |
49.40038 |
49.68541 |
w3 |
44.75251 |
44.93729 |
w4 |
27.87885 |
27.59806 |
w5 |
45.59723 |
45.77335 |
W1 |
24.57785 |
25.08252 |
W2 |
19.92998 |
20.33440 |
W3 |
3.05632 |
2.99517 |
W4 |
17.71838 |
18.17529 |
W5 |
2.21160 |
2.15911 |
|
|
|
ptl |
0.8093 |
0.8091 |
Mean ptl |
0.8092 |
|
Vs |
2.733 |
2.668 |
Dt4 |
1.12 |
1.12 |
Mean Dt4 |
1.12 |
|
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 1.12 at 20 °C.
Key value for chemical safety assessment
- Relative density at 20C:
- 1.12
Additional information
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 study is a GLP compliant, guideline experimental study and is fully acceptable for assessment of this endpoint.
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