Short Lead Time for 200 Liter Plastic Barrel - HEDP powder – HGW Trade

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Classification: Chemical Auxiliary Agent CAS No.: 2809-21-4 Other Names: 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid MF: C2H8O7P2 EINECS No.: 229-146-5 Purity: 90.0%min Place of Origin: Jiangsu, China (Mainland) Type: Other Usage: Water Treatment Chemicals Brand Name: OEM service Model Number: HEDP powder Appearance: powder Packaging & Delivery Packaging Details HEDP POWDER: 25KG INNER PE BAG OUTER PLASTIC WOVEN BAG Delivery Time Within 20 days after confirm the...


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Short Lead Time for 200 Liter Plastic Barrel - HEDP powder – HGW Trade Detail:

Classification:
Chemical Auxiliary Agent
CAS No.:
2809-21-4
Other Names:
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid
MF:
C2H8O7P2
EINECS No.:
229-146-5
Purity:
90.0%min
Place of Origin:
Jiangsu, China (Mainland)
Type:
Other
Usage:
Water Treatment Chemicals
Brand Name:
OEM service
Model Number:
HEDP powder
Appearance:
powder

Packaging & Delivery

Packaging Details
HEDP POWDER: 25KG INNER PE BAG OUTER PLASTIC WOVEN BAG
Delivery Time
Within 20 days after confirm the firm order

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

 CAS No.: 2809-21-4                      

HEDP is an organophosphoric acid corrosion inhibitor. HEDP can chelate with Fe, Cu, and Zn ions to form stable chelating compounds. HEDP can dissolve the oxidized materials on these metals surfaces. HEDP shows excellent scale and corrosion inhibition effects under temperature 250centigrade.

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, HEDP can be used as cleaning agent in electronic fields and as additives in daily chemicals.

 

Specification of HEDP:

Appearance of HEDP:            Colorless or light yellow transparent liquid             White crystal powder

Active content of HEDP (HEDP):                58.0-62.0percent                                 89.0 percent min

Phosphorous acid of HEDP (as PO33-):        2.0 percent max                         0.5 percent max

Phosphoric acid of HEDP (as PO43- ):         0.8 percent max                           0.5percent max

Chloride of HEDP (as Cl-):                    0.01 percent max                                    0.01 percent max

pH of HEDP (1percent solution):                2 max                                                      2 max

Density of HEDP (20 centigrade):                   1.40 g/cm3                                                   -

Fe ion of HEDP ppm:                                  10 max                                                       20 max

Colour APHA (Hazen):                                40 max                                                              -

 

Usage of HEDP:

  • 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. 

 

Package and Storage of HEDP:

  1. HEDP liquid: Normally In 250kg net Plastic Drum, IBC drum can also be used as required.
  2. HEDP solid: 25kg inner liner polyethylene (PE) bag, outer plastic woven bag, or confirmed by clients.
  3. Storage for ten months in room shady and dry place.

 

HEDP, HEDP.Na, HEDP.Na2, HEDP.Na4, HEDP.Kx, HEDP Liquid, HEDP Power, HEDP Solid, HEDP-Na, HEDP-Na2, HEDP-Na4,  HEDP-Kx


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    5 Stars By Hellyngton Sato from Tanzania - 2018.06.19 10:42
    The customer service staff's answer is very meticulous, the most important is that the product quality is very good, and packaged carefully, shipped quickly!
    5 Stars By Irene from UK - 2018.09.21 11:44

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