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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 226-033-2 | CAS number: 5235-82-5
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- Deviations:
- no
- GLP compliance:
- no
- Remarks:
- The study described in this report was conducted in a facility which operates in accordance with Good Laboratory Practice principles, however no claim of GLP compliance was intended nor is made for this study.
- Type of method:
- pycnometer method
- Specific details on test material used for the study:
- Identification: 4-(3-(1-napthylamino)propyl)morpholine
Appearance/Physical state: brown/black granular solid
Batch: ZA01212016
Purity: 94.4%
Expiry date: 20 January 2019
Storage conditions: room temperature in the dark - Type:
- density
- Density:
- 1 165 kg/m³
- Temp.:
- 20.1 °C
- Key result
- Type:
- relative density
- Density:
- 1.165
- Temp.:
- 20.1 °C
- Conclusions:
- The density of the test item has been determined to be 1.165 x 10^3 kg/m^3 at 20.1 ± 0.5 °C and a relative density of 1.165.
- Executive summary:
Density. 1.165 x 103kg/m3 at 20.1 ± 0.5 °C, relative density 1.165, using a gas comparison pycnometer method, designed to be compatible with Method A.3 Relative Density of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 109 of the OECD Guidelines for Testing of Chemicals, 02 October 2012.
Reference
Calibration:
The pressure readings and the calculated volume for the reference and sample cells are shown in the following table:
Determination |
P1 |
P2 |
P3 |
P4 |
Reference Cell Volume (cm3) |
Sample Cell Volume (cm3) |
1 |
17.030 |
6.448 |
17.074 |
8.457 |
90.900 |
149.179 |
2 |
17.041 |
6.453 |
17.100 |
8.473 |
90.842 |
149.052 |
3 |
17.054 |
6.458 |
17.003 |
8.422 |
90.949 |
149.225 |
Mean reference cell volume : 90.897 cm3
Mean sample cell volume : 149.152 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 use.
Sample:
The pressure readings, calculated volumes and density values obtained for the test item are shown in the following table:
Determination |
Replicate |
P1(sample) |
P2(sample) |
Volume |
Density |
Mean Density (kg/m3) |
1 |
A |
17.046 |
7.301 |
27.827 |
1.16 x 103 |
1.16 x 103 |
B |
17.020 |
7.287 |
27.744 |
1.16 x 103 |
||
C |
17.029 |
7.290 |
27.719 |
1.17 x 103 |
||
2 |
A |
17.046 |
7.415 |
31.090 |
1.16 x 103 |
1.17 x 103 |
B |
17.176 |
7.468 |
30.991 |
1.17 x 103 |
||
C |
17.055 |
7.416 |
31.008 |
1.17 x 103 |
Mean density: 1.165 x 103 kg/m3
Relative density: 1.165
Temperatur: 20.1 ± 0.5 °C
Discussion:
Duplicate determinations were performed to ensure a reproducibility of less than ± 20 kg/m3was obtained.
The mass density of a substance varies with temperature and pressure and this variance is typically negligible for solids. Increasing the temperature of a substance may decrease its density by increasing the volume of that substance. Typical thermal expansion coefficients of solids are in the order of 10-5°C-1, and the volumetric expansion of stainless steel (used as calibration spheres) at 20 °C is approximately 5.2 x 10-5°C-1. Therefore, a change in temperature of several degrees will have no significant effect on the volume and hence the density of a solid substance.
Therefore, it was considered that the difference in temperature between 20.0 °C and normal laboratory conditions did not have a significant effect on the determined density, and therefore the calculated relative density.
Description of key information
Density. 1.165 x 103kg/m3 at 20.1 ± 0.5 °C, relative density 1.165, using a gas comparison pycnometer method, designed to be compatible with Method A.3 Relative Density of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 109 of the OECD Guidelines for Testing of Chemicals, 02 October 2012.
Key value for chemical safety assessment
- Relative density at 20C:
- 1.165
Additional information
The density of the test item has been determined to be 1.165 x 10 EXP3 at 20.1 ± 0.5 °C and a relative density of 1.165.
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.
