Etidronate disodium

Corrosion and Scale Inhibitor

WTA-037

7414-83-7

Etidronate disodium

WTA-037

HEDP·Na2; Phosphonic acid, P,P'-(1-hydroxyethylidene)bis-, sodium salt (1:2); Phosphonic acid, (1-hydroxyethylidene)bis-, disodium salt; Phosphonic acid, (1-hydroxyethylidene)di-, disodium salt; 1-Hydroxyethane-1,1-diphosphonic acid disodium salt; BA 49280E; Calcimux; Chelest PH 210; Chelest PH 212; Cublen K 2012; Didronel; Didronel R; Disodium (1-hydroxyethylidene)-1,1-bisphosphonate; Disodium (1-hydroxyethylidene)-1,1-diphosphonate; Disodium 1-hydroxy-1,1-ethanediphosphonate; Disodium 1-hydroxyethane-1-diphosphonate; Disodium 1-hydroxyethanediphosphonate; Disodium 1-hydroxyethylidenediphosphonate; Disodium ethane-1-hydroxy-1,1-diphosphonate; Disodium ethane-1-hydroxy-1,1-diphosphonic acid; Disodium ethane-1-hydroxy-1-diphosphonate; Disodium ethanol-1,1-diphosphonate; Disodium ethydronate; Disodium etidronate; Disodium HEDP; Disodium hydroxyethylidene diphosphonate; Etidron; Etidronic acid disodium salt; Fostex NZ 2; Hydroxyethylidene diphosphonic acid disodium salt; Ostedron; PH 212; Sequion 10Na2; Sodium ethane-1-hydroxy-1,1-diphosphonate; Sodium ethidronate; Sodium ethydronate; Sodium etidronate; TF 133B (chelating agent); Turpinal 2NZ; Xydifon

disodium;hydroxy-[1-hydroxy-1-[hydroxy(oxido)phosphoryl]ethyl]phosphinate

249.99

C2H6Na2O7P2

CC(O)(P(=O)(O)[O-])P(=O)(O)[O-].[Na+].[Na+]

InChI=1S/C2H8O7P2.2Na/c1-2(3,10(4,5)6)11(7,8)9;;/h3H,1H3,(H2,4,5,6)(H2,7,8,9);;/q;2*+1/p-2

GWBBVOVXJZATQQ-UHFFFAOYSA-L

578.8°C at 760 mmHg

>261°C (dec.)

≥95%

1.12-1.22 g/mL

231-025-7

HEDP·Na2 is an organic phosphonic acid corrosion inhibitor, it can chelate with Fe, Cu, and Zn ions, it can dissolve the oxidized materials. It has good scale and corrosion inhibition effects even under 250°C, it is stable under high pH value, not easy to be hydrolyzed, not easy to be decomposed under normal light and heat condition, its acid/alkaline and chloride oxidation tolerance are better than that of other organic phosphonic acids. HEDP·Na2 can form six-ring chelating compounds with metal ions in water system, Ca2+ in particular. HEDP·Na2 has good scale inhibition effects and obvious dissolution threshold effects. When used with other Water Treatment Chemicals, the synergistic effects is better.

Store at 2-8°C

Soluble in Water (Slightly)

4.0-6.0

HEDP·Na2 is widely used in circulating cooling water system, medium and low pressure boiler, oil field water pipelines as scale and corrosion inhibitor in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.. In light woven industry, HEDP·Na2 is used as detergent for metal and nonmetal. In dyeing industry, HEDP·Na2 is used as peroxide stabilizer and dye-fixing agent. In non-cyanide electroplating, HEDP·Na2 is used as chelating agent.

White Solid

Etidronate disodium is an organophosphonic acid corrosion inhibitor, it can chelate with Fe, Cu, and Zn ions.

Weak acidity, Avoid contact with eye and skin, once contacted, flush with water.

20.0 max

3.0-6.0

16.5 min; 74.0-79.0