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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 December 2014 to 05 February 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- The study was conducted according to an internationally recognised method, and under GLP. The substance is considered to be adequately characterised with its purity. Therefore full validation applies.
- 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
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)
- Principles of method if other than guideline:
- Not applicable
- GLP compliance:
- yes
- Type of method:
- pycnometer method
- Specific details on test material used for the study:
- - Storage condition of test material: In refrigerator (2-8°C) protected from light, container flushed with nitrogen
- Stability at higher temperatures: Yes, maximum temperature: 40°C, maximum duration: 10 days - Dynamic viscosity of test material:
- No data, but supposed to be flowable.
- Type:
- density
- Density:
- 0.867 g/cm³
- Temp.:
- 20 °C
- Key result
- Type:
- relative density
- Density:
- 0.867 other: dimensionless
- Temp.:
- 20 °C
- Conclusions:
- The substance is much less dense than water.
- Executive summary:
The density of the test substance was measured under GLP according OECD 109 / EU A3 guideline, pycnometer method.
Calibration was performed with water. Experiment was performed at 20 °C in duplicate, and the mean density was calculated, and converted to relative density vs water at 4°C.
The density of the test substance at 20 ºC was 0.867 g/cm3. The relative density D20/4 was 0.867.
Reference
The individual measurements were obtained with a deviation of ≤ 0.01 g/cm3. According to the guideline, the density of the test substance is given as the mean value.
Table 4.4/1: Determination of the volume of the pycnometer
|
Test 1 |
Test 2 |
Mean |
Mass empty pycnometer (A) |
30.4739 g |
30.4743 g |
30.4741 g |
Mass pycnometer with water (B) |
40.1120 g |
40.1120 g |
|
Volume of the pycnometer |
9.6555 cm3 |
9.6551 cm3 |
9.6553 cm3 |
Table 4.4/2: Density of the test substance
|
Test 1 |
Test 2 |
Mean |
Mass pycnometer with test substance (C)
|
38.8423 g |
38.8428 g
|
30.4741 g
|
Density |
0.8667 g/cm3 |
0.8667 g/cm3 |
0.867 g/cm3 |
Description of key information
The substance is much less dense than water.
Key value for chemical safety assessment
- Relative density at 20C:
- 0.867
Additional information
A fully reliable experimental study, conducted according to a recognized OECD/EC method and under GLP, is available. It is considered as a key study, and the result is retained as key data.
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