1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid (HEDP) By Zibo Eyuan Import & Export Co. Ltd, China
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1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid (HEDP)

1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid (HEDP)

FOB Price

Obtenir le dernier prix

900 ~ 1050 / Metric Ton

|

Minimum Order

Localité:

-

Prix de commande minimale:

Commande minimale:

5 Metric Ton

Packaging Detail:

250kg drums, 1250kg ibc or as your required

Delivery Time:

10days after order date

Supplying Ability:

700 Metric Ton per Month

Payment Type:

T/T, L/C

Contacter maintenant
Zibo Eyuan Import & Export Co. Ltd

Zibo Eyuan Import & Export Co. Ltd

China

Membre gratuit

Personne à contacter Kevin

Liuquan Road, Zibo, Shandong

Contacter maintenant

Description

*-Hydroxy Ethylidene*1, *-Diphosphonic Acid (HEDP)
 CAS No： ********4
Alias: *-Hydroxy Ethylidene*1, *-Diphosphonic Acid,  Dequest ***0,  HEDPA
Molecular formula: C2H8O7P2 Relative molecular mass: **6.*2
Structural formula:
 
 Product Property
 HEDP is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn ions to form stable chelating compounds. It can dissolve the oxidized materials on these metals surfaces. HEDP shows excellent scale and corrosion inhibition effects under temperature **0oC HEDP has good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions. Its acid/alkali and chlorine oxidation tolerance are better than that of other organic phosphoric acids (salt). HEDP can react with metal ions in water system to form hexa-element chelating complex, with calcium ion in particular. Therefore, HEDP has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.
 
Index Name Specifications
Appearance Clear, Colorless to pale yellow aqueous solution White powder
Active Content(as HEDP),% *8.***2.0 *9.0
Phosphorous Acid (as PO**- )% 1.0max. 0.*0
Phosphorous Acid (as PO**- )% 0.6max. 0.*0
Acetic Acid  % 0.5max. **-
Chloride(as Cl-) , ppm **0.0max 0.5
PH (1% solution) 2.0max 2.0
Density(*0oC) g/cm3 1.***1.*7 *-
Iron (asFe),ppm *0.0max 5.0
Ca sequestration, mg CaCO3/g **0.0min **-
Identification：           Qualified                                                             Active Content: (as HEDP H2O) % *8.0
       
 Application scope and Usage
 HEDP is used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc. In light woven industry, HEDP is used as detergent for metal and nonmetal. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent; in non-cyanide electroplating, HEDP is used as chelating agent. The dosage of ***0mg/L is preferred as scale inhibitor, ****0mg/L as corrosion inhibitor, and ********0mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid.

 

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