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EC number: 922-435-3 | 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:
- 16 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:
- 1.1 other: unitless
- Temp.:
- 20 °C
- Conclusions:
- The relative density of the test item was determined to be 1.10 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 1.10 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 | 24.00731 | 25.01714 |
| w2 | 48.98376 | 49.72655 |
| w3 | 44.24860 | 45.03685 |
| w4 | 27.14135 | 28.04316 |
| w5 | 45.07010 | 45.82723 |
| W1 | 24.97645 | 24.70941 |
| W2 | 20.24129 | 20.01971 |
| W3 | 3.13404 | 3.02602 |
| W4 | 17.92875 | 17.78407 |
| W5 | 2.31254 | 2.23564 |
| ptl | 0.8088 | 0.8086 |
| Mean ptl | 0.8087 | |
| Vs | 2.860 | 2.765 |
| Dt4 | 1.096 | 1.095 |
| Mean Dt4 | 1.10 | |
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 1.10 at 20 °C.
Key value for chemical safety assessment
- Relative density at 20C:
- 1.1
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).
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