Etidronic acid disodium salt CAS NO.7414-83-7

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Product Name：	disodium ethydronate
Synonyms：	Phosphonic acid, (1-hydroxyethylidene)bis-, disodium salt; 1-hydroxyethylidene)di-phosphonic aci disodium salt; 1-hydroxyethane-1,1-diyl)diphosphonic acid disodium salt; (1-hydroxyethylidene)diphosphonic acid, disodium salt; 1-hydroxyethylidene-1,1-diphosphonic acid disodium salt; didronel r; disodium (1-hydroxyethylidene)diphosphonate; disodium 1-hydroxyethylidene phosphonate; disodium dihydrogen (1-hydroxyethylidene)diphosphonate; disodium ethanol-1,1-diphosphonate; disodium etidronate; ethane-1-hydroxy-1,1-diphosphonic acid, disodium salt; etidronate disodium; (1-hydroxyethane-1,1-diyl)di-phosphonic aci disodium salt; (1-hydroxyethylidene)bis-phosphonic aci disodium salt; sm-5600; sodium ethidronate; sodium ethydronate; sodium etidronate; sodiumetidronate; Phosphonic acid,(1-hydroxyethylidene)bis-,disodium salt; hedp disodium salt; Disodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid; etidronic acid disodium salt; Disodium salt of 1-Hydroxy Ethylidene-1,1-DiphosphonicAcid; HEDP·Na2; phosphonate, P,P'-(1-hydroxyethylidene)bis-, sodium salt (1:2); (1-Hydroxyethane-1,1-diyl)diphosphonic acid disodium salt
CAS No：	7414-83-7
EINECS No：	231-025-7
Molecular Formula：	C2H4Na2O7P2
Molecular Weight：	247.9771
InChI：	InChI=1/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-4
Molecular Structure：

Properties and Usage: 

HEDP•Na2 is an organophosphonic 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 organophosph-onic 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.