Registration Dossier
Registration Dossier
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EC number: 225-897-8 | CAS number: 5137-70-2
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- GLP study following OECD guideline
- 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:
- 2015-07-28
- Type of method:
- pycnometer method
- Type:
- relative density
- Density:
- 1.116
- Temp.:
- 20 °C
- Conclusions:
- The mean relative density of the test item, using the gas comparison method with the stereopycnometer, was 1.116 ± 0.020.
- Executive summary:
In a GLP study following the OECD guideline, the relative density of the dodecylphosphonic acid was determinated to be 1.116 ± 0.02 at 20°C
Reference
Assay No. 1
Test item sample weight (ME): 2.6083 g
Reference volume (VA): 79.250 cm3
Volume of sample cell holder (VC): 27.636 cm3
Temperature during the assay: 21.5 °C
Data | P2 (PSIG) | P3 (PSIG) | Vp (cm3) | Density (g/cm3) | Relative density | Mean relative density |
Run N°1 | 17.016 | 4.122 | 2.3011 | 1.1335 | 1.1335 | 1.134 ± 0.001 |
Run N°2 | 17.032 | 4.126 | 2.3001 | 1.1340 | 1.1340 | |
Run N°3 | 17.020 | 4.123 | 2.3008 | 1.1336 | 1.1337 |
Assay No. 2
Test item sample weight (ME): 2.6589 g
Reference volume (VA): 79.250 cm3
Volume of sample cell holder (VC): 27.636 cm3
Temperature during the assay: 20.8 °C
Data | P2 (PSIG) | P3 (PSIG) | Vp (cm3) | Density (g/cm3) | Relative density | Mean relative density |
Run N°2 | 17.019 | 4.108 | 2.4204 | 1.0986 | 1.0986 | 1.098 ± 0.001 |
Run N°3 | 17.019 | 4.108 | 2.4204 | 1.0985 | 1.0986 | |
Run N°4 | 17.029 | 4.110 | 2.4237 | 1.0970 | 1.0971 |
Remark: The run No. 1 of this assay was not taken into account for the calculation of the mean relative density as the result was not in compliance with the quality criteria
Description of key information
The relative density was determined to be equal to 1.116 at 20 °C
Key value for chemical safety assessment
- Relative density at 20C:
- 1.116
Additional information
An experimental study, scored as Klimisch 1, was selected as a key study. It was performed in compliance with GLP according to EC A.3 test method and OECD 109 test guideline
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