Registration Dossier
Registration Dossier
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EC number: 240-514-4 | CAS number: 16469-17-3
Density
Administrative data
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 31 August 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 016
- Report date:
- 2016
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)
- Type of method:
- pycnometer method
Test material
- Reference substance name:
- Neodymium trihydroxide
- EC Number:
- 240-514-4
- EC Name:
- Neodymium trihydroxide
- Cas Number:
- 16469-17-3
- Molecular formula:
- H3NdO3
- IUPAC Name:
- neodymium trihydroxide
- Test material form:
- solid: particulate/powder
- Details on test material:
- - Name of test material (as cited in study report): neodymium trihydroxide
- Physical state: solid
- Appearance: clear blue powder (purple under UV light)
Constituent 1
Results and discussion
Density
- Key result
- Type:
- relative density
- Density:
- 4.664
- Temp.:
- 20.7 °C
- Remarks on result:
- other: Mean value of two assays (assay No.1: 4.690, assay No.2: 4.638)
Any other information on results incl. tables
Two independent measurements at 20.8°C (assay No. 1) and 20.5°C (assay No. 2) were done.
The two assays resulted in relative densities of 4.690 ± 0.005 and 4.638 ± 0.005, respectively. The mean relative density was thus 4.664 ± 0.028 at 20.7°C.
Applicant's summary and conclusion
- Conclusions:
- The relative density of neodymium trihydroxide was determined according to EU A.3 method and OECD test guideline 109 in compliance with GLP using a gas comparison pycnometer. The relative density of neodymium trihydroxide was determined to be 4.664 ± 0.028 at 20.7°C.
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