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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Density

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
density, other
Remarks:
density and relative density
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Remarks:
Raw test data are missing in report. Estimated accurcay was not mentioned.
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
Type of method:
pycnometer method
Remarks:
helium stereopycnometer
Type:
density
Density:
4.7 g/cm³
Temp.:
20 °C
Remarks on result:
other: relative density D20/4 = 4.7

In order to calculate sample relative density D204, the value of the density of water at 4 °C was looked up in the literature, this being 0.999975 g/cm³ according to the handbook of Chemistry and Physics. If it is assumed that sample density at 20 °C does not differ more than the own measurement error, this value is calculated from the quotient between the value of sample density at 20 °C and the value of water density at 4 °C, both expressed in the same units.

Conclusions:
The relative density D20/4 of the sample is 4.7.

Description of key information

Zirconium zircon with encapsulated cadmium selenium sulphide has a relative density of 4.7 at 20 °C in comparison to the density of water at 4 °C.

Key value for chemical safety assessment

Relative density at 20C:
4.7

Additional information