Registration Dossier
Registration Dossier
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EC number: 421-880-6 | CAS number: 201792-73-6
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- November 11, 2009-November 21, 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- GLP compliance:
- no
- Type of method:
- pycnometer method
- Type:
- relative density
- Density:
- ca. 1.286
- Temp.:
- 20 °C
- Conclusions:
- The relative density of the substance ( measured at 20°C and related to the density of water at 4°C) is 1.286
- Executive summary:
The relative density of Acid Black 210 was calculated from the ratio of weights and known volumes following the pycnometer method (Gay-Lussac pycnometers) at 20°C. The result related to the density of the water at 4°C is 1.286
Reference
Table No.1: Results of determination of relative density
Parameter |
1stdetermination |
2nddetermination |
Average |
Weight of empty pycnometer |
19.45616 |
18.08601 |
- |
Weight of pycnometer with test substance |
25.73827 |
23.39194 |
- |
Weight of solid test substance (Z1) |
6.28211 |
5.30593 |
- |
Weight of liquid after filled up (Z3) |
39.53517 |
37.94241 |
- |
Weight of n-hexane (full pycnometer) (Z2) |
36.70376 |
35.29873 |
|
Density of n-hexane (rliq) |
0.68231 |
0.67382 |
0.67806 |
Density of solid substance (r) |
1.2741 |
1.2986 |
1.286 |
Relative density of solid substance |
- |
- |
1.286 |
Note: Standard deviation of relative density is 0.022 and was calculated from variation range.
Description of key information
1.286 at 20°C
Key value for chemical safety assessment
- Relative density at 20C:
- 1.286
Additional information
A study was performed on Acid Black 210 at 20°C according to method EU A3 (Stahl, 1996). The summary available is lacking of many information and therefore the test is used as supporting test. Result of density is 1.43.
Another study, used as key study, (Michal Bartos, 2011) was performed on Acid Black 210, according to EU method A.3. Result of density at 20°C is 1.286 ( with respect to the density of water at 4°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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