Registration Dossier
Registration Dossier
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EC number: 205-741-5 | CAS number: 149-45-1
Density
Administrative data
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 13 Feb - 16 Feb 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 guidelineopen allclose all
- 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:
- yes (incl. QA statement)
- Remarks:
- Landesamt für Umwelt, Wasserwirtschaft und Gewerbeaufsicht Kaiser-Friedrich-Straße 7, 55116 Mainz, Germany
- Type of method:
- pycnometer method
Test material
- Reference substance name:
- Disodium 4,5-dihydroxybenzene-1,3-disulphonate
- EC Number:
- 205-741-5
- EC Name:
- Disodium 4,5-dihydroxybenzene-1,3-disulphonate
- Cas Number:
- 149-45-1
- Molecular formula:
- C6H6O8S2.2Na
- IUPAC Name:
- disodium 4,5-dihydroxybenzene-1,3-disulphonate
Constituent 1
Results and discussion
Densityopen allclose all
- Type:
- density
- Density:
- 2.064 g/cm³
- Temp.:
- 20 °C
- Type:
- relative density
- Density:
- 2.065 other: unitless
- Temp.:
- 20 °C
- Remarks on result:
- other: calculated from results in study
- Remarks:
- based on density of water at 4 ºC (0.999975 g/cm3).
Any other information on results incl. tables
Final results
Using the pycnometer method, a density of 2.0645 ± 0.0050 g/cm3 at 20.0 ± 0.4 °C was measured. This value is the mean of two independent determinations ± standard deviation. Standard deviation was 0.0050 g/cm3, showing good correlation of the two determinations
Individual results
Results of the single determinations with the respective error as well as the mean value and its standard deviation are presented in the following tables:
Determination |
Densityin g/cm3 |
Error of Determ. in g/cm3 |
1 |
2.0680 |
0.0006 |
2 |
2.0610 |
0.0006 |
Results – Mean Values
Parameter |
Value |
Unit |
StandardDeviation |
RelativeStandardDeviation |
Volume of Pycnometer |
50.46 |
cm3 |
0.0002 |
0.00% |
Density of Test Item |
2.0645 |
g/cm3 |
0.0050 |
0.24% |
Density of Test Item |
2064.5 |
kg/m3 |
5.0 |
0.24% |
Relative Density of Test Item |
2.0645 |
|
0.0050 |
0.24% |
Applicant's summary and conclusion
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.
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