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EC number: 812-493-7 | CAS number: 1312943-49-9
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 11 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:
- 0.996 other: unitless
- Temp.:
- 20 °C
- Conclusions:
- The relative density of the test item was determined to be 0.996 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. The relative density of the test item was determined to be 0.996 at 20 °C.
The study is a GLP compliant guideline experimental study fully acceptable for assessment for this endpoint.
Reference
Table 1: Results of relative density study
| Parameter | Replicate 1 | Replicate 2 |
| w1 | 24.82297 | 24.60294 |
| w2 | 49.39666 | 49.67998 |
| w3 | 44.72750 | 44.90343 |
| w4 | 27.82261 | 27.62513 |
| w5 | 45.29683 | 45.47115 |
| W1 | 24.57369 | 25.07704 |
| W2 | 19.90453 | 20.30049 |
| W3 | 2.99964 | 3.02219 |
| W4 | 17.47422 | 17.84602 |
| W5 | 2.43031 | 2.45447 |
| ptl | 0.8084 | 0.8079 |
| Mean ptl | 0.8081 | |
| Vs | 3.007 | 3.037 |
| Dt4 | 0.997 | 0.995 |
| Mean Dt4 | 0.996 | |
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 0.996 at 20 °C.
Key value for chemical safety assessment
- Relative density at 20C:
- 0.996
Additional information
The relative density of the test item was determined in a OECD 109 and EC method A.3 guideline study (Dunning 2018).
The study is a GLP compliant guideline experimental study fully acceptable for assessment for this endpoint.
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