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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Physical & Chemical properties


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Description of key information

Density K3EDTA: (1.8 +- 0.5) g/cm3 at 20°C

Key value for chemical safety assessment

Relative density at 20C:

Additional information

Based on read-across from the related substance disodium dihydrogen ethylenediaminetetraacetate a density value of 1.8 g/cm3 was determined for the tripotassium EDTA. Based on the similarity of the potassium and sodium EDTA salts in terms of elemental composition and crystal structure the densities are exspected to be similar as well. The density of sodium chloride (2.17 g/cm³) is only slightly higher than that of potassium chloride (1.98 g/cm³). The uncertainty of +-0.5 on the relative density does not influence the risk assessment.