Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 291-001-7 | CAS number: 90295-11-7
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Study period:
- January 20th, 2016
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
- Justification for type of information:
- REPORTING FORMAT FOR THE ANALOGUE APPROACH
The usage of information on Direct Blue 199 Na/NH4, which has the same main component and with a different counter ion, can be considered as suitable and appropriated because the difference in salification is expected to not influence the characteristics related to the specific end-point.
The impurity profile does not impact on the read across proposed. Details on the approach followed are included in the document attached to the IUCLID section 13. - Reason / purpose for cross-reference:
- read-across source
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Version / remarks:
- adopted 27th July 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- pycnometer method
- Type:
- relative density
- Density:
- 0.927
- Temp.:
- 20 °C
- Conclusions:
- Relative density: 0.9270, at 20 °C
- Executive summary:
The density of the test substance was measured using the pycnometer method. The procedure was performed according to the EU Method A.3 and according to the OECD guideline 109. The density was calculated from the difference in weight between the full and empty pycnometer and its known volume. The relative density was calculated as a ratio of densities of the substance at 20 °C and water at 4 °C.
Conclusion
Relative density: 0.9270, at 20 °C
Reference
Results of density measurement
| Parameter | 1st determination | 2nd determination | Average |
| Weight of empty pycnometer (Zpyc) | 19.45153 | 18.08061 | - |
| Weight of pycnometer with test substance | 25.27767 | 24.01736 | - |
| Weight of solid test substance (Z1) | 5.82614 | 5.93675 | - |
| Weight of pycnometer with sample and n-heptane (Z3) | 38.26401 | 37.08952 | - |
| Weight of pycnometer with n-heptane (Z2) | 36.71647 | 35.54632 | - |
| Density of n-heptane (ρliq) | 0.68297 | 0.68375 | 0.68336 |
| Density of solid substance (ρ) | 0.9302 | 1.4446 | 0.9270 |
| Relative density of solid substance (D420) | - | - | 0.9270 |
Note: Standard deviation of relative density is 0.0056 and was calculated from variation range.
Description of key information
Relative density: 0.927 at 20 °C
Key value for chemical safety assessment
- Relative density at 20C:
- 0.927
Additional information
Pycnometer method - OECD 109
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
