Zinc Phosphate Hydrate

Other Water Treatment Agents

WTA-101

34807-26-6

Zinc Phosphate Hydrate

WTA-101

Zinc orthophosphate hydrate, Trizinc diphosphate hydrate, Zinc acid phosphate hydrate, Trizinc bis(orthophosphate) hydrate, Phosphoric acid, zinc salt, hydrate (2:3:1), Trizinc diphosphate hydrate, Zinc phosphate tetrahydrate (CAS 7543-51-3)

404.095

Zn3(PO4)2·xH2O

900 °C (anhydrous)

3.998 g/cm 3(anhydrous)

Insoluble

In water treatment, Zinc Phosphate Hydrate is used as a corrosion inhibitor in cooling towers, heat exchangers, and closed-loop systems. The hydrated form allows for easier dissolution and dosing, especially in large-scale operations. By forming a microcrystalline barrier on metallic surfaces, it reduces wear and prevents metal ion release into the treated water. It can be applied in both preventative maintenance programs and as part of corrective treatment for systems showing early signs of corrosion.

White powder and/or chunks

Zinc Phosphate Hydrate offers the same corrosion protection as anhydrous Zinc Phosphate but with improved handling and solubility characteristics.