Registration Dossier
Registration Dossier
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EC number: 276-696-7 | CAS number: 72490-01-8
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 22 Nov 1991 to 25 Nov 1991
- 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)
- GLP compliance:
- yes
- Type of method:
- air comparison pycnometer (for solids)
- Key result
- Type:
- relative density
- Density:
- 1.23 other: dimensionless
- Temp.:
- 22 °C
- Type:
- density
- Density:
- 1 230 kg/m³
- Temp.:
- 22 °C
- Conclusions:
- The density of the test substance is 1.23E+03 kg/m3 at 22 °C.
- Executive summary:
- To determine the density of the test substance, a GLP-compliant study was performed using the pycnometer method according to OECD TG 109. The density was found to be 1.23E+03 kg/m3, corresponding to a relative density of 1.23, at 22 °C.
Reference
RESULTS
Primary Results Of Experiments
Sample preparation:
- Weight of sample before drying: 6.15 g
- Weight of sample after drying: 6.11 g
- Relative change: 0.7 %
- Weight of sample for analysis I: 2.984 g
- Weight of sample for analysis II: 3.031 g
- Sample has been dried for 10 h at a temperatureof 50 °C.
Result for the volume of the test sphere (standard sphere of volume 8.58E-06 m3): V = 8.574E-06 m3
Table 1: Results of successive volume measurements
|
Analysis I |
Analysis II |
1 |
2.89 mL |
2.91 mL |
2 |
2.88 mL |
2.92 mL |
3 |
2.88 mL |
2.92 mL |
average |
2.883 mL |
2.917 mL |
- |
0.448 mL blank |
0.448 mL blank |
= |
2.435 mL effective volume |
2.469 mL effective volume |
Final results:
Density*: p = ( 1.23 ± 0.03) E+03 kg/m3
Temperature: 22 °C
The indicated error is based on an accuracy of 0.05E0-6 m3 for the volume measurement.
*Average of analysis I and II
Description of key information
1.23 (corresponding to a density of 1.23E+03 kg/m3) at 22 °C, OECD TG 109, air pycnometer method, Füldner 1992.
Key value for chemical safety assessment
- Relative density at 20C:
- 1.23
Additional information
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