60% HEDP is in liquid, and being used as corrosion inhibitor and scale inhibitor, chelating(sequesting), deflocculating agent in cooling and boiler water treatment, textile dying, detergents and so on.
HEDP is an organophosphonic acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn ions to form stable chelating compounds. It can dissolve the oxidized materials' surface. HEDP shows excellent scale and corrosion inhibition effects under temperature 250oC. 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 or alkaline and chlorine oxidation tolerance are better than that of other organophosphoric acid. HEDP can react with metal ions in water system to form hexaleement 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.
Product Specification / Models
Appearance: Colorless or light yellow transparent liquid
Phosphorous Acid%: 2.0 max
Phosphoric Acid%: 0.8max
Application / Models
HEDP is used as scale and corrosion inhibitor in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry,metallurgy, fertilizer, etc. In light woven industry, HEDP is uses as detergent for metal and nonmetal. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent, In non-cyanide electroplating, HEDP is used as chelating agent, the dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/l as corrosion inhibitor, and 1000-2000mg/l as detergent. Usually HEDP is used together with polycarboxylic acid,
250kg plastic drum, IBC drum is also available according to the customer's requirement.
Shandong Huayou Chemistry Co., Ltd is located in Jinan, Shandong province.
The company was founded in 1992 and keep good team work with many colleges and universities and scientific research institutions. In the past 19 years, our company facouses on the newest water treatment chemicals and now we have developed 8 series water treatment over 100 varieties products. At present, our main products are HEDP, ATMP, PBTCA, DTPMPS, PAA, PAAS, HPMA and so on. We can ensure you stable high quality products and supplying with ISO9001:2000 quality management system certificate.
As one of the largest and professional water treatment chemials factories in China, we are always ready to cooperate with all friends and colleagues to be your stable supplier in water treatment area, making a lot of great contribution to water treatment field.