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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 201-063-9 | CAS number: 77-85-0
Density
Administrative data
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Experimental phase started 16th June 2016 and completed on the 15th January 2017.
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- pycnometer method
Test material
- Reference substance name:
- Ethylidynetrimethanol
- EC Number:
- 201-063-9
- EC Name:
- Ethylidynetrimethanol
- Cas Number:
- 77-85-0
- Molecular formula:
- C5H12O3
- IUPAC Name:
- 2-(hydroxymethyl)-2-methylpropane-1,3-diol
- Test material form:
- solid: granular
Constituent 1
Results and discussion
Density
- Key result
- Type:
- relative density
- Density:
- ca. 1 220 kg/m³
- Temp.:
- 20.3 °C
Any other information on results incl. tables
Results
Calibration
The pressure readings and the calculated volume for the reference and sample cells are shown in the following table:
Table 6
Determination |
P1 |
P2 |
P3 |
P4 |
Reference cell volume (cm3) |
Sample cell volume (cm3) |
1 |
17.313 |
6.557 |
17.367 |
8.610 |
90.740 |
148.848 |
2 |
17.049 |
6.459 |
16.951 |
8.403 |
90.885 |
149.012 |
3 |
17.150 |
6.501 |
17.278 |
8.564 |
91.145 |
149.300 |
Mean reference cell volume : 90.953 cm3
Mean sample cell volume : 149.225 cm3
As the reference cell volume and sample cell volume were within the defined tolerance (90.953 ± 1.0 cm3and 149.225 ± 1.0 cm3for the reference and sample cell volumes respectively) the gas comparison pycnometer was therefore considered acceptable for u
Sample
The pressure readings, calculated volumes and density values obtained for the test item are shown in the following table:
Table 7
Determination |
Test |
P1(sample) |
P2(sample) (psig) |
Volume (cm3) |
Density (kg/m3) |
Mean density (kg/m3) |
1 |
A |
17.120 |
7.615 |
35.564 |
1.222 x 103 |
1.22 x 103 |
B |
17.050 |
7.581 |
35.487 |
1.225 x 103 |
||
C |
17.073 |
7.589 |
35.427 |
1.227 x 103 |
||
2 |
A |
17.113 |
7.557 |
34.079 |
1.221 x 103 |
1.22 x 103 |
B |
17.112 |
7.555 |
34.037 |
1.222 x 103 |
||
C |
17.049 |
7.523 |
33.922 |
1.226 x 103 |
Mean density : 1.22 x 103 kg/m3
Relative density : 1.22
Temperature : 20.3 ± 0.5 °C
Discussion
Duplicate determinations were performed to ensure a reproducibility of less than ± 20 kg/m3was obtained.
Applicant's summary and conclusion
- Conclusions:
- The density of the test item has been determined to be 1.22 x 103 kg/m3 at 20.3 ± 0.5 °C (relative density: 1.22).
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.
