Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information


The inorganic substancezirconium sodium lactatewith structureZr(OH)4-x(CH3Na+O-CHCOO-)xis considered to be highly soluble in water.

In view of the nature of the substance and the availability of physical data available in the literature, we have considered the use of these data for the purpose of this report.

The main objective of the test work performed was to consider the potential for dissociation (dissolution) in water under biological and environmental conditions.




State of substance

White powder

Melting point

At temperatures above 100 °C the substance starts decomposing to form zirconia or ZrO2

Boiling point

Not applicable

Relative density

1.91 g/cm3


Not applicable

Vapour pressure

No discernible vapour pressure

Surface tension

Data not available

Solubility in water

The substance is highly soluble in water (425 g/L at 25 °C)

Solubility at stomach pH = 1.5


Dissociation constant

4.87 x10-8


Not flammable


Additional information