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EC number: 220-298-8 | CAS number: 2706-75-4
Density
Administrative data
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Experimental starting date: 28 March 2017. Experimental completion date: 22 June 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
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- air comparison pycnometer (for solids)
Test material
- Reference substance name:
- Sodium glyoxylate
- EC Number:
- 220-298-8
- EC Name:
- Sodium glyoxylate
- Cas Number:
- 2706-75-4
- Molecular formula:
- C2H2O3.Na
- IUPAC Name:
- sodium oxoacetate
Constituent 1
- Specific details on test material used for the study:
- Identification: Safelink SPM-01
Appearance/Physical state: colorless to slightly yellow powder
Batch: G150201
Purity: 99.9%
Expiry date: not supplied
Storage conditions: room temperature, in the dark
Results and discussion
Densityopen allclose all
- Key result
- Type:
- density
- Density:
- 1 950 kg/m³
- Temp.:
- 20 °C
- Key result
- Type:
- relative density
- Density:
- 1.95
- Temp.:
- 20 °C
Any other information on results incl. tables
Calibration
The pressure readings and the calculated volume for the reference and sample cells are shown
in the following table:
| determination | P1 (psig) | P2 (psig) | P3 (psig) | P4 (psig) | reference cell volume (cm3) |
Sample cell Volume (cm3) |
| 1 | 17.088 | 6.47 | 17.91 | 8.879 | 90.64 | 148.751 |
| 2 | 17.917 | 6.79 | 18.338 | 9.09 | 91.026 | 149.167 |
| 3 | 18.016 | 6.826 | 18.508 | 9.175 | 90.916 | 149.041 |
Mean reference cell volume : 90.861 cm3
Mean sample cell volume : 148.986 cm3
As the reference cell volume and sample cell volume were within the defined tolerance
(90.953 ± 1.0 cm3 and 149.225 ± 1.0 cm3 for 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) (psig) |
P2(sample) (psig) |
Volume (cm3) |
density (kg/m3) |
Mean Density (kg/m3) |
| 1 | A | 18.402 | 7.967 | 30 | 1.95 X 103 | 1.96 X 103 |
| B | 17.896 | 7.747 | 30 | 1.96 X 103 | ||
| C | 18.473 | 7.996 | 29.9 | 1.96 X 103 | ||
| 2 | A | 17.98 | 7.994 | 35.5 | 1.95 X 103 | 1.95 X 103 |
| B | 17.902 | 7.961 | 35.5 | 1.95 X 103 | ||
| C | 18.116 | 8.054 | 35.5 | 1.96 X 103 |
Mean density : 1.95 x 103 kg/m3
Relative density : 1.95
Temperature : 20.0 ± 0.5 °C
Discussion
Duplicate determinations were performed to ensure a reproducibility of less than ± 20 kg/m3
was obtained.
Applicant's summary and conclusion
- Conclusions:
- Conclusion
The density of the test item has been determined to be 1.95 x E3 kg/m3 at 20.0 ± 0.5 °C and a
relative density of 1.95. - Executive summary:
1.95 x 103 kg/m3 at 20.0 ± 1.0 °C, relative density of 1.95, by gas comparison
pycnometer, 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.
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