Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
GLP compliance:
yes
Type of method:
pycnometer method

Test material

Constituent 1
Chemical structure
Reference substance name:
Gadolinium oxide sulfide (Gd2O2S), ytterbium-doped
EC Number:
271-829-5
EC Name:
Gadolinium oxide sulfide (Gd2O2S), ytterbium-doped
Cas Number:
68609-44-9
Molecular formula:
(Gd1.7, Yb0.3)O2S
IUPAC Name:
Gadolinium oxide sulfide, ytterbium-doped
Test material form:
solid: particulate/powder
Specific details on test material used for the study:
Test substance was dried in a desiccator, using silicagel (20.2 +/- 0.2 °C) under yellow light for 45 hours.

Results and discussion

Densityopen allclose all
Key result
Type:
density
Density:
ca. 7.61 g/cm³
Temp.:
20 °C
Key result
Type:
relative density
Density:
ca. 7.61 other:
Temp.:
20 °C

Any other information on results incl. tables

Table 1          
Density of the Test Item

 

Test 1

Test 2

Mean

Density [g/cm3]

7.621

7.606

7.61

Applicant's summary and conclusion

Conclusions:
The relative density of the substance density was determined to be 7.61.
Executive summary:

The sample substance was tested via gas comparison stereopycnometer after drying under vacuum, silicagel desiccation and yellow light for 45 hours. The density and relative density were determined after comparison to a calibration test result (ball of known diamaeter 30.162 +/- 1um). The test substance density was shown to be 7.61 g/cm3 with a relative density of 7.61 at 20 ºC.