Sodium etidronate is another name for HEDP Na. As a sodium etidronate supplier and manufacturer, Shandong IRO Water Treatment Co., Ltd offers a lower price. Without the wholesalers, the cost will be reduced. The quality of HEDP Na does not have any other impact. That means customers can spend less money to buy etidronate sodium products that meet the requirements.
If you are interested in IRO sodium etidronate products, please continue to browse this page.
CAS No. 29329 71 3
Molecular Formula: C2H7O7P2Na
Molecular Weight: 228.93
Etidronate Sodium, HEDP Na, HEDP Monosodium
Sodium Etidronate, HEDP Na
Sodium etidronate (HEDP Na) has a good ability to control and complex the metal ions. It can dissolve the oxidized materials. Etidronate sodium has good scale and corrosion inhibition effects even under 250℃. It is completely soluble in water and generally shows excellent solubility in an alkaline environment. Sodium etidronate is stable at high pH value. It is not easy to be hydrolyzed and decomposed under normal light and heat condition. Same as other HEDP sodium salts (etidronate, HEDP Na2, HEDP Na4), its acid/alkaline and chloride oxidation tolerance are better than that of other organic phosphonic acids.
Sodium etidronate (HEDP Na) is used as a stabilizer in cosmetic-dye industry, in formulations containing bleach and hypo, it also prevents swelling problems of the packages. HEDP Na provides chlorine resistance in swimming pools, removes stains and crusts from the centre (usage level 1-15 ppm active substance).
Etidronate sodium can form six-ring chelating compounds with metal ions in the water system, Ca2+ in particular. It has good scale inhibition effects and obvious dissolution threshold effects. When used with other water treatment agents, the synergistic effects is better.
|Appearance||colorless or yellowish transparent liquid|
|Active content (HEDP) %||19.0-21.0|
|Fe, mg/L||≤ 20|
|Ph value (1% water solution)||2.3 – 2.9|
|Density (20°C) g/cm3||1.11 – 1.21|
Used as scale and corrosion inhibitor in circulating cool water system
Used as scale and corrosion inhibitor in medium and low pressure boiler
Used as scale and corrosion inhibitor in oil field water pipelines
Used as peroxide stabilizer and dye-fixing agent in dyeing industry
Used as chelating agent in non-cyanide electroplating
Used in medicine to strengthen bone and treat osteoporosis
When used as scale inhibitor, the dosage 2-20mg/l is preferred
when used as the corrosion inhibitor, the dosage 20-100mg/l is preferred,
when used as the chelating agent, the dosage 1000-2000mg/l is preferred.
Usually, HEDP•Na is used together with polycarboxylic acid.