Registration Dossier
Registration Dossier
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EC number: - | 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:
- From 19 December 2018 to 22 February 2019
- 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:
- not specified
- GLP compliance:
- no
- Remarks:
- The study was conducted in a facility which operates in accordance with Good Laboratory Practice principles; however no claim of GLP compliance was intended nor is made for this study
- Type of method:
- pycnometer method
- Key result
- Type:
- density
- Density:
- ca. 959 kg/m³
- Temp.:
- 19 °C
- Key result
- Type:
- relative density
- Density:
- ca. 0.96 other: Dimensionless
- Temp.:
- 19 °C
- Conclusions:
- Under the study conditions, the relative density of the test substance was determined to be 0.960 at 19°C.
- Executive summary:
A study was conducted to determine the density of the test substance using pyconmeter method, according to the OECD Guideline 109. Under the study conditions, the relative density of the test substance was determined to be 0.960 at 19°C (Envigo, 2019).
Reference
Results
Calibration
The pressure readings and the calculated volume for the reference and sample cells are shown in the following table:
Determination |
P1 |
P2 |
P3 |
P4 |
Reference Cell Volume (cm3) |
Sample Cell Volume (cm3) |
1 |
17.558 |
6.650 |
17.498 |
8.675 |
90.750 |
148.857 |
2 |
17.555 |
6.652 |
17.110 |
8.483 |
90.919 |
149.021 |
3 |
18.500 |
7.012 |
17.852 |
8.852 |
90.987 |
149.067 |
Mean
reference cell volume: 90.885 cm3
Mean sample cell volume: 148.982 cm3
As the reference cell volume and sample cell volume were within the defined tolerance (90.953 ± 1.0 cm3 and 149.225 ± 1.0 cm3 for the reference and sample cell volumes respectively), the gas comparison pycnometer was therefore considered acceptable for use.
Sample
The pressure readings, calculated volumes and density values obtained for the test substance are shown in the following table:
Determination |
Replicate |
P1(sample) |
P2(sample) |
Volume |
Density |
Mean Density (kg/m3) |
1 |
A |
17.514 |
7.975 |
40.273 |
959 |
960 |
B |
17.682 |
8.050 |
40.236 |
960 |
||
C |
17.896 |
8.146 |
40.201 |
961 |
||
2 |
A |
17.294 |
7.811 |
38.642 |
959 |
959 |
B |
17.517 |
7.913 |
38.675 |
958 |
||
C |
17.187 |
7.762 |
38.625 |
960 |
Mean
density: 959 kg/m3
Relative density: 0.960
Temperature: 19.0 ± 0.5
°C
Discussion
Duplicate determinations were performed to ensure a reproducibility of less than ± 20 kg/m3 was obtained.
Conclusion
The density of the test substance has been determined to be 959 kg/m3 at 19.0 ± 0.5 °C and a relative density of 0.960.
Description of key information
The density of the test substance was determined using the pyconmeter method, according to OECD Guideline 109 (Envigo, 2019).
Key value for chemical safety assessment
Additional information
Relative density: 0.96 at 19°C
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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