Registration Dossier
Registration Dossier
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EC number: 215-119-5 | CAS number: 1303-36-2
Density
Administrative data
- Endpoint:
- density, other
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 28/02/2017
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: Metller Toledo XS64
- Principles of method if other than guideline:
- The density of the samples is measured using the commercial balance (Mettler Toledo XS64), which functions based on the Archimedes' principle. The sample is weighed in air and in a liquid then the density is calculated by the automated software. To avoid deterioration of the samples (like chalcogenides glasses), the liquid chosen is absolute ethanol.
- GLP compliance:
- not specified
- Type of method:
- air comparison pycnometer (for solids)
Test material
- Reference substance name:
- Diarsenic triselenide
- EC Number:
- 215-119-5
- EC Name:
- Diarsenic triselenide
- Cas Number:
- 1303-36-2
- Molecular formula:
- As2Se3
- IUPAC Name:
- diarsenic triselenide
- Test material form:
- solid
Constituent 1
- Specific details on test material used for the study:
- The step-by-step procedure is as follows,
(i) Absoluteethanolisfilledinthecontainer.Makesurethattheleveloftheethanolimmerses the basket completely.
(ii) Note the temperature of the absolute ethanol (as shown on the thermometer attached to the device) and enter it in the balance. It is very important to periodically observe the changes in temperature and update the values in the balance. Wrong temperature value can affect the density results!
(iii) ‘Tare’ the balance.
(iv) Place the sample on the pan (in air). Wait till the value of weight is stabilized.
(v) Then, place the sample in the basket (in absolute ethanol). Wait till the value of weight is
stabilized.
(vi) Finally, the machine displays the calculated density (in g/cm3).
Results and discussion
Densityopen allclose all
- Key result
- Type:
- density
- Remarks:
- B21 10 04
- Density:
- 4.62 g/cm³
- Temp.:
- 20 °C
- Key result
- Type:
- density
- Remarks:
- B21 11 02
- Density:
- 4.62 g/cm³
- Temp.:
- 20 °C
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.
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.
