Registration Dossier

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Additional information

Ethylenediamine-tetraacetic acid, zinc-disodium complex (EDTA-ZnNa2) is not classified as dangerous or hazardous.

Ethylenediamine-tetraacetic acid, zinc-disodium complex (EDTA-ZnNa2) consists of odourless white microgranules.

EDTA-ZnNa2 does not melt under 240°C and starts to decompose at 263°C.

The relative density (D420) of ethylenediaminetetraacetic acid, zinc-disodium complex is 1.720

Characteristics of the PSD


53.1 µm


130 µm


266 µm

Fraction < 100 µm

32.7 % v/v

Fraction < 10 µm

1.5 % v/v

Fraction < 5 µm

0.7 % v/v

 The vapour pressure is low.

.The estimated log Kow for EDTA-ZnNa2 is - 10.32.
 The water solubility of EDTA-ZnNa2 is at least 534g/L at 0°C.

The self-ignition temperature of Ethylenediaminetetraacetic acid, zinc-disodium complex is 315°C.

 EDTA-ZnNa2 is non flammable, non explosiveand has no oxidising properties.  

The stability and dissociation constants log K of EDTA-ZnNa2 are 16.5, 3.0, 1.2 en 11.6 .