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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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Endpoint:
density
Remarks:
density
Type of information:
other: handbook data
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: According to the REACH regulation (“ECHA, guidance on information requirements and chemical safety assessment – chapter R.7a”), it is allowed to use specific handbook data as a reliable data source.
Qualifier:
no guideline followed
Principles of method if other than guideline:
Data from the CRC handbook.
GLP compliance:
no
Type of method:
other: not applicable
Type:
density
Density:
8.93 g/cm³
Temp.:
20 °C
Conclusions:
Dibismuth trioxide has a density of 8.93 g/cm3 measured at 20°C.
Executive summary:

According to the CRC handbook, dibismuth trioxide has a density of 8.93 g/cm3 measured at 20°C.

Endpoint:
density
Remarks:
density
Type of information:
other: handbook data
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: According to the REACH regulation (“ECHA, guidance on information requirements and chemical safety assessment – chapter R.7a”), it is allowed to use handbook data as a reliable data source.
Qualifier:
no guideline followed
Principles of method if other than guideline:
Data from the Gestis database.
GLP compliance:
no
Type of method:
other: not applicable
Type:
density
Density:
8.93 g/cm³
Temp.:
20 °C
Conclusions:
According to the Gestis database, dibismuth trioxide has a density of 8.93 g/cm3 measured at 20°C.
Executive summary:

According to the Gestis database, dibismuth trioxide has a density of 8.93 g/cm3 measured at 20°C.

Endpoint:
density
Remarks:
density
Type of information:
other: secondary source
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
According to the European Chemicals Agency, 2010 (Practical guide 2: How to report weight of evidence),values for physico-chemical properties taken from material safety data sheets (MSDSs) and all other company technical data can only be assigned a reliability rating of (4), not assignable, unless detailed information such as the experimental methodology and test substance are provided to enable the preparation of a (robust) study summary and an independent evaluation of the study reliability.
Qualifier:
no guideline followed
Principles of method if other than guideline:
Data from a material safety data sheet
GLP compliance:
no
Type of method:
other: not applicable
Type:
density
Density:
9 g/cm³
Temp.:
20 °C
Conclusions:
Dibismuth trioxide has a density of 9.0 g/cm³.
Executive summary:

According to the MSDS, dibismuth trioxide has a density of 9.0 g/cm³.

Description of key information

Dibismuth trioxide has a density of 8.93 g/cm3 measured at 20°C.

Key value for chemical safety assessment

Relative density at 20C:
8.93

Additional information

All values available for dibismuth trioxide are for the density. The key value should be entered as the relative (specific) density of the substance. Since no reference is explicitly stated, it can be assumed that water at 4 °C (or, more precisely, 3.98 °C, which is the temperature at which water reaches its maximum density) is the reference. The density of water is (approximately) 1 g/cm3, which makes relative density calculations particularly convenient: the density of the object only needs to be divided by 1.

For the evaluation of this endpoint data from the CRC handbook, the Gestis database and one MSDS were used as a weight of evidence.

According to ECHA, guidance on information requirements and chemical safety assessment – chapter R.7a, specific handbook data for physic-chemical properties are considered to be a reliable data source. Useful reference books and data compilations containing peer reviewed physico-chemical data include the Merck Index and the CRC Handbook of Chemistry and Physics.

The CRC handbook as the most reliable reference and the Gestis database as a supportive information provide a value for density of 8.93g/cm³.

Concerning the available MSDS: According to the European Chemicals Agency, 2010 (Practical guide 2: How to report weight of evidence),values for physico-chemical properties taken from material safety data sheets (MSDSs) can only be assigned a reliability rating of (4), not assignable, unless detailed information such as the experimental methodology are provided to enable the preparation of a (robust) study summary.

However, the density stated in the MSDS is nearly equal to the values stated above: 9.0g/cm³.