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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 424-190-3 | CAS number: 105641-66-5 DIAZO ER 1273
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
- Justification for type of information:
- For justification of read-across, please refer to IUCLID section 13.
- Reason / purpose for cross-reference:
- read-across source
- Type:
- relative density
- Density:
- ca. 1.47 other: dimesionless
- Temp.:
- 20 °C
- Conclusions:
- The relative density of the read across item at 20 °C (compared with water at 4 °C) was determined to be 1.47.
- Executive summary:
A study was performed in accordance with Commission Regulation (EC) No. 440/2008, method A.3 and OECD TG 109 by using the gas comparison pycnometer at 20.0 °C. Two tests were performed and the density of the source substance was determined. The relative density of the source substance was determined to be D4R 1.47.
- Endpoint:
- relative density
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Study period:
- 21 Aug 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- For justification of read-across, please refer to section 13.
- Reason / purpose for cross-reference:
- read-across source
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- GLP compliance:
- no
- Type of method:
- air comparison pycnometer (for solids)
- Type:
- relative density
- Density:
- ca. 1.47 other: dimensionless
- Temp.:
- 20 °C
- Conclusions:
- The relative density of the test item at 20 °C (compared with water at 4 °C) was determined to be D4R 1.47.
- Executive summary:
A study was performed in accordance with Commission Regulation (EC) No. 440/2008, method A.3 and OECD TG 109 by using the gas comparison pycnometer at 20.0 °C. Two tests were performed and the density of the test item was determined. The relative density of the test item was determined to be D4R 1.47.
Referenceopen allclose all
Results
Two test series with different weight were done at ambient temperature (20.0 °C).
Table 1 – 1st Test Series Results
Weight: 0.9690 g | p1[psi] | p2[psi] | Volume [cm3] | DensityρPR[g/cm3] |
1stmeasurement | 19.507 | 10.599 | 0.6562 | 1.4768 |
2ndmeasurement | 19.543 | 10.619 | 0.6555 | 1.4783 |
3rdmeasurement | 19.532 | 10.612 | 0.6570 | 1.4748 |
Mean |
|
| 0.6562 | 1.4766 |
Table 2 – 2nd Test Series Results
Weight: 0.9337 g | p1[psi] | p2[psi] | Volume [cm3] | DensityρPR[g/cm3] |
1stmeasurement | 19.506 | 10.613 | 0.6344 | 1.4719 |
2ndmeasurement | 19.516 | 10.619 | 0.6335 | 1.4738 |
3rdmeasurement | 19.552 | 10.638 | 0.6344 | 1.4718 |
Mean |
|
| 0.6341 | 1.4725 |
The mean density for the two test series is 1.47 g/cm3.
Conclusion: The relative density of the test item at ambient temperature (compared to water at 4 °C) was determined to be: D4R= 1.47
Description of key information
A study was performed with the source substance in accordance with Commission Regulation (EC) No. 440/2008, method A.3 and OECD TG 109 by using the gas comparison pycnometer at 20 °C. Two tests were performed and the density of the test item was determined. The relative density of the source substance (calculated from the mean density of the test item) was determined to be D420= 1.47.
Key value for chemical safety assessment
- Relative density at 20C:
- 1.47
Additional information
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.
