Registration Dossier

Physical & Chemical properties

Density

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Description of key information

The tap density of zirconium basic carbonate was determined to be 0.651 g/cm3 at ambient conditions (Bradshaw , 2010). The density of zirconium basic sulfate is expected to be in a similar range but is still under investigation. The dossier will be updated as soon as the results are available.

Key value for chemical safety assessment

Additional information

The tap density of zirconium basic carbonate was determined as due to the physical and chemical nature of this substance, other methods for determining the density are not applicable, e.g. pycnometry cannot be used as the material changes due to loss of moisture on degassing. The density of zirconium basic sulfate is still under investigation. Until the results of the study are available, the density value for zirconium basic carbonate can be considered as a close estimate.