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Disodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid

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  Post Date: Oct 31,2016
  Expiry Date: Apr 29,2017
  Detailed Description: Cas No. :7414-83-7

Introduction s:

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 ℃ , 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, Ca 2+ 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.

CAS No.  7414-83-7

Molecular Formula: C2H6O7P2Na2

Molecular weight: 250

Technologies :

Items
Index
Appearance
Colorless to light yellow transparent liquid
White powder
Active content (HEDP) %
16.5 min
74.0-79.0
Active content (HEDP•Na2)  %
20.0 min
89.9-95.8
Density (20℃)g/cm3
1.12-1.22
--
Fe, mg/L
--
20.0 max
Moisture , %
--
3.0-6.0
PH (1% water solution)
4.0-6.0
4.0-6.0

Usage:

HEDP•Na2 is widely used in circulating cool 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.

Safety Protection:

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

Package and Storage:

Liquid: 200L plastic drum, IBC(1000L),customers’ requirement.

Solid: 25kg/bag,customers’ requirement. Storage for ten months in shady room and dry place.


  CAS Registry Number:

7414-83-7

  Synonyms: ;Etidronate Sodium;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;
  Molecular Formula: C2H4Na2O7P2
  Molecular Weight: 247.9771
  Molecular Structure: 7414-83-7 disodium ethydronate

  Company: Qingdao Kerun Chemical Co., Ltd.     [ China ]        
  Contact: MS.LI
  Tel: +86-532-86538255
  Fax: +86-532-86538653
  Email: kerun@qdkrsw.com
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