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EC number: 234-679-1 | CAS number: 12023-27-7
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 2012-11-12
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Version / remarks:
- 1995
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- air comparison pycnometer (for solids)
- Key result
- Type:
- relative density
- Density:
- 4.76
- Temp.:
- 20 °C
- Conclusions:
- The relative density of the test item at ambient temperature (compared to water at 4 °C) according to the European Commission Regulation (EC) No. 440/2008 method A.3. and in the OECD 109 was determined to be D420 = 4.76.
- Executive summary:
A study was conducted according to Regulation (EU) No. 440/2008 method A.3 and OECD Guideline No. 109 to determine the relative density of the test item. The density was determined using a gas comparison pycnometer. The relative density of the test item at ambient temperature (compared to water at 4 °C) was determined to be D420 = 4.76.
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2012-11-12
- 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:
- no
- Type of method:
- air comparison pycnometer (for solids)
- Key result
- Type:
- relative density
- Density:
- 4.63
- Temp.:
- 20 °C
- Conclusions:
- The relative density of the test item at ambient temperature (compared to water at 4 °C) according to the European Commission Regulation (EC) No. 440/2008 method A.3. and in the OECD 109 was determined to be D420 = 4.63.
- Executive summary:
A study was conducted according to Regulation (EU) No. 440/2008 method A.3 and OECD Guideline No. 109 to determine the relative density of the test item. The density was determined using a gas comparison pycnometer. The relative density of the test item at ambient temperature (compared to water at 4 °C) was determined to be D420 = 4.63.
Referenceopen allclose all
Two test series with different weights were performed at ambient temperature (22.0 °C).
1st run
|
p1 / psi* |
p2 / psi* |
Volume / cm3 |
Density ρPR / g / cm3 |
1. measurement |
19.579 |
12.263 |
1.3538 |
4.7479 |
2. measurement |
19.582 |
12.265 |
1.3529 |
4.7512 |
3. measurement |
19.534 |
12.235 |
1.3524 |
4.7529 |
Mean |
|
|
1.3531 |
4.7507 |
2nd run
|
p1 / psi* |
p2 / psi* |
Volume / cm3 |
Density ρPR / g / cm3 |
1. measurement |
19.544 |
12.244 |
1.3315 |
4.7855 |
2. measurement |
19.535 |
12.238 |
1.3342 |
4.7756 |
3. measurement |
19.530 |
12.234 |
1.3409 |
4.7419 |
Mean |
|
|
1.3355 |
4.7710 |
'Conversion factor: 1 psi = 6895 Pa = 0.06895 bar
Mean density ρPR for the two test series: 4.7609 g/cm3
Relative density (compared to water at 4 °C) D4R:
D4R = ρPR/ρW4 = 4.76 g/cm3 / 1.00 g/cm3 = 4.76
Two test series with different weights were performed at ambient temperature (22.0 °C).
1st run
|
p1 / psi* |
p2 / psi* |
Volume / cm3 |
Density ρPR / g / cm3 |
1. measurement |
19.566 |
12.194 |
1.8149 |
4.6171 |
2. measurement |
19.539 |
12.179 |
1.8012 |
4.6523 |
3. measurement |
19.574 |
12.199 |
1.8148 |
4.6174 |
Mean |
|
|
1.8103 |
4.6289 |
2nd run
|
p1 / psi* |
p2 / psi* |
Volume / cm3 |
Density ρPR / g / cm3 |
1. measurement |
19.542 |
12.183 |
1.7851 |
4.6238 |
2. measurement |
19.516 |
12.169 |
1.7685 |
4.6674 |
3. measurement |
19.509 |
12.162 |
1.7883 |
4.6155 |
Mean |
|
|
1.7806 |
4.6356 |
Mean density ρPR for the two test series: 4.6323 g/cm3
Relative density (compared to water at 4 °C) D4R:
D4R = ρPR/ρW4 = 4.639 g/cm3 / 1.00 g/cm3 = 4.63
Description of key information
The relative density of the test item at ambient temperature (compared to water at 4 °C) according to the European Commission Regulation (EC) No. 440/2008 method A.3. and in the OECD 109 was determined to be D420 = 4.63.
Key value for chemical safety assessment
- Relative density at 20C:
- 4.63
Additional information
A study was conducted according to Regulation (EU) No. 440/2008 method A.3 and OECD Guideline No. 109 to determine the relative density of the test item. The density was determined using a gas comparison pycnometer. The relative density of the test item at ambient temperature (compared to water at 4 °C) was determined to be D420 = 4.63.
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