• HEDP（羥基乙叉二膦酸）是一種有機(jī)膦酸類阻垢緩蝕劑，能與鐵、銅、鋅等多種金屬離子形成穩(wěn)定的絡(luò)合物，能溶解金屬表面的氧化物。在250℃下仍能起到良好的緩蝕阻垢作用，在高pH下仍很穩(wěn)定，不易水解，一般光熱條件下不易分解。耐酸堿性、耐氯氧化性能較其它有機(jī)膦酸(鹽)好?？膳c水中金屬離子，尤其是鈣離子形成六圓環(huán)螯合物，因而具較好的阻垢效果并具明顯的溶限效應(yīng)，當(dāng)和其它水處理劑復(fù)合使用時，表現(xiàn)出理想的協(xié)同效應(yīng)。

• HEDP固體屬于高純產(chǎn)品，適用于冬季嚴(yán)寒地區(qū)；特別適用于電子行業(yè)的清洗劑和日用化學(xué)品添加劑。

• HEDP廣泛應(yīng)用于電力、化工、冶金、化肥等工業(yè)循環(huán)冷卻水系統(tǒng)及中、低壓鍋爐、油田注水及輸油管線的阻垢和緩蝕；在輕紡工業(yè)中，可以作金屬和非金屬的清洗劑，漂染工業(yè)的過氧化物穩(wěn)定劑和固色劑，無氰電鍍工業(yè)的絡(luò)合劑，醫(yī)藥行業(yè)作放射性元素的攜帶劑。

HEDP is an organophosphonate corrosion inhibitor. HEDP shows multifunctional properties that includes scale inhibition and corrosion inhibition. HEDP is noted for excellent CaCO3 inhibitor and water hardness stabilizer. HEDP is very good complexing agent for metal ions like Fe, Cu, and Zn.

HEDP can react with metal ions in water system to form hexa-element chelating complex, with calcium ion in particular. When built together with other water treatment chemicals, HEDP shows good synergistic effects. HEDP shows excellent stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions. HEDP shows excellent scale and corrosion inhibition effects under temperature 250℃. HEDP acid/alkali and chlorine oxidation tolerance are better than that of other organophosphonate (salts)kairuiwater.com.