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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 701-238-4 | CAS number: -
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2010-04-06
- 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
- GLP compliance:
- no
- Type of method:
- air comparison pycnometer (for solids)
- Key result
- Type:
- relative density
- Density:
- 1.92 other: unitless
- Temp.:
- 21 °C
- Conclusions:
- The relative density of the test item has been determined to be 1.92 at 21.0 ± 0.5°C using a relevant test method. The result is considered to be reliable.
- Executive summary:
The relative density was determined to be 1.92 at 21.0 ± 0.5°C, using a gas comparison pycnoter, designed to be compatible with Method A3 Relative Density of Commission Regulation (EC) No 440/2008 of 30 May 2008.
Reference
Results:
Calibration:
The pressure readings (P1and P2) and the calculated volume for the calibration ball are shown in the following table:
Determination |
P1 |
P2 |
Volume (cm3) |
Certified Volume (cm3) |
Tolerance (cm3) |
A |
17.391 |
8.615 |
56.6 |
56.6 |
± 0.5 |
B |
17.416 |
8.625 |
56.5 |
56.6 |
± 0.5 |
Sample
The pressure readings, calculated volumes and density values obtained for the test item are shown in the following table:
Determination |
P1 |
P2 |
Volume (cm3) |
Density (kg/m3) |
A |
17.446 |
6.906 |
10.412 |
1940.3 |
B |
17.013 |
6.752 |
11.004 |
1908.2 |
Temperature: 21.0 ± 0.5ºC
Mean density: 1924.2 kg/m3
Relative density: 1.92
Description of key information
Relative density (solid form): 1.92 at 21.0 ± 0.5°C (EU Method A.3)
Key value for chemical safety assessment
Additional information
A relative density value of 1.92 at 21.0 ± 0.5°C was determined for the solid form of HEDP (2-3Na) using a gas comparison pycnometer method in accordance with EU Test Method A.3. The result is considered to be reliable and is selected as key study.
In available secondary sources to which reliability could not be assigned, a density value of 1.16 g/cm3 at 20°C was reported for the aqueous solution and a bulk density value of ≥700 to ≤1100 kg/m3 was reported for the solid form of HEDP (2-3Na).
Or companies to enter their own company specific data for solid forms [CONFIDENTIAL].
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.
