Hedp Phosphonate Scale Inhibitor Chemical For Cool Water Cas 2809-21-4

 

HEDP Phosphonate Scale Inhibitor Chemical For Cool Water CAS 2809-21-4

 

 

Quick Detail:

 

1. Name: 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)
2. CAS No. : 2809-21-4
3. Appearance: Colorless or light yellow transparent liquid or White crystal powder
4. Active content: 60% or 90%
5. Use: 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

 

 

Description:

 

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 250℃. HEDP has good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordnary light and heat conditions. Its acid/alkali and chlorine oxidation tolerance are better than that of other organophosphoric 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.

 

The solid state of HEDP is crystal powder, suitable for usage in winter and freezing districts. Because of its high purity, it can be used as cleaning agent in electronic fields and as additives in daily chemicals.

 

 

Applications:

 

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 1-10mg/l is preferred as scale inhibitor, 10-50mg/l as corrosion inhibitor, and 1000-2000mg/l as detergent. Usually, HEDP is used together with polycarboxylic acid. 

 

 

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

 

HEDP;HEDP(A);HEDPA;ETIDRONIC ACID;1-Hydroxy Ethylidene-1,1-Diphosphonic Acid; Hydroxyethylidene-1,1-diphosphonicacid(HEDP); 1-HYDROXYETHYLIDENEDIPHOSPHONIC ACID;Hydroxyethylidene Diphosphonic acid(HEDP);1-hydroxy-1,1-Ethanediyl ester

 

 

Specifications:

 

Items	Index
Appearance	Colorless or light yellow transparent liquid	White crystal powder
Active content(HEDP)%	58.0-62.0	90.0min
Phosphorous acid(as PO33-)%	1.0max	0.8max
Phosphoric acid (as PO43- )%	0.6max	0.5max
Chloride (as Cl-)% ppm	100.0max	50.0max
pH(1%solution)	2.0max	2max
Density(20℃)g/cm3	1.43-1.47	—
Fe,mg/l	10max	5.0max
Colour APHA (Hazen)	30max	—

 

Packing:

 

 

 

Competitive Advantage:

 

1. Production - To reduce the cost by scale effect and technical improvement and guarantee the quality by strict QC system.
2. Sourcing – To achieve the synergy from the establishment of different but interrelated business units.
3. Logistics - To guarantee the supply in time and release the distributors storage pressure by our own warehouse and other facilities
4. Application- To help the customers to select the most proper products and improve its usage efficiency