Henan Xingfa Bio-Technology Co., Ltd.

1-Hydroxy Ethylidene-1 1-Diphosphonic Acid, HEDP, Hedpa; manufacturer / supplier in China, offering HEDP (1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid) CAS 2809-21-4, Propylene Glycol Tech Grade and USP Grade, Diethylene Glycol Monomethyl Ether (DM) and so on.

Supplier Homepage Product List Chemical Auxiliaries HEDP (1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid) CAS 2809-21-4

HEDP (1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid) CAS 2809-21-4

FOB Price:US $1 - 1,300 / Ton
Min. Order (Tons) FOB Price
1+ US $1-1,300 / Ton
Get Latest Price
Min. Order: 1 Ton
Production Capacity: 500000mt/Years
Transport Package: 25kg Bag, 250kg Drum
Payment Terms: L/C, T/T, Western Union, Paypal, Money Gram

Basic Info.

Model NO.:2809-21-4
Acid-Base Property:Acidic Surface Disposal Agent
Certification:SGS
Environmental Protection:Yes
Color:Yellow
Appearance:Liquid and Powder
Type:Industrial Circulating Water Treatment Agent
Trademark:q
Specification:60% 98%
Origin:China
HS Code:29

Product Description

Properties: 

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 ordinary 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 can be wide used for industrial treatment water as corrosion and scale inhibitor, for example boiler water, cyclic cooling water and water of oil field. In addition, it is used as complexing agent in no cyanide electroplating, as metal cleaner and as stabilizer and fixation in blanch and dye industry. As the scale inhibitor, it can well inhibit the scale of calcium carbonate. The adding weight concentr ation of active ingredient is 1-10mg/l. It often cooperates with dispersion-scale inhibitor in the use. 

Package: 

Net. 250kgs Plastic Drum, IBC's can also be used as required

Note: 

HEDP is available with lower Chloride level, lower Iron level, lower Arsenic level
HEDP is also available with its Sodium Salt solution or kalium salt solution
Items
Index
Appearance
Colorless or light yellow transparent liquid

White crystal powder
Active content ( )%
60.0-62.0

98.0min
Phosphorous acid ( as PO33 ) %
2.0max

0.5max
Phosphoric acid ( as PO43 ) %
0.8max

0.5max
Chloride (as Cl)%
1.0max

1.0max
pH (1 solution )
2.0max

2.0max
Density ( 20 )g/cm3
1.430-1.460

 
Fe,mg/L
10max

5max
Colour APHA (Hazen)
40max

 
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Henan Xingfa Bio-Technology Co., Ltd.

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