HEDP 60%/CAS 2809-21-4/Water Treatment Chemicas/Corrosion Inhibitor
Properties:
HEDP is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn ions to form stable chelating compounds.It can dissolve the oxidized materials on these metals’ surfaces. HEDP shows excellent scale and corrosion inhibition effects under temperature 250℃. HEDP has good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions. Its acid/alkali and chlorine oxidation tolerance are better than that of other organophosphoric acids (salt). HEDP can react with metal ions in water system to form hexa-element chelating complex, with calcium ion in particular. Therefore, HEDP has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.
The solid state of HEDP is crystal powder, suitable for usage in winter and freezing districts. Because of its high purity, it can be used as cleaning agent in electronic fields and as additives in daily chemicals.
Specification:
items | index | |
Appearance | Colorless or light yellow transparent liquid | White crystal powder |
Active content (HEDP) % | 58.0-62.0 | 90 min |
Phosphorous acid (as PO33-)% | 2.0 max | 0.8 max |
Phosphoric acid (asPO43- ) % | 0.8 max | 0.5 max |
Chloride (as Cl-)% | 0.01 max | 0.01 max |
pH (1% solution) | 2 max | 2 max |
Density (20℃) g/cm3 | 1.4 | — |
Fe ion ppm | 10 max | 5 max |
Colour APHA (Hazen) | 30 max | — |
WPA CHEMICALS LIMITED is the international business supply chain enterprise which came into being in the era of "Internet plus" and "chemical online trading". It is the strategic partner of Zhejiang Wangsheng business treasure. WPA CHEMICALS Limited is not only an international business-oriented company, but also a chemical supply chain platform. Relying on the strong "big data" support of "Wangsheng business treasure and China chemical industry network", limited aims to provide excellent products for customers of coatings, plastics, rubber, petrochemical, fine chemicals, and other industrial chain customers, and at the same time, it also cultivates the market, deepens the industry application, and provides various services for end customers Application solutions. It mainly deals in the import and export business of coating chemicals, plastic chemicals, rubber chemicals, petrochemical products, fine chemicals and food additives. The company aims to become an advanced professional comprehensive service provider of chemical products in China. We hope to cooperate with you to create brilliant future.
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