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  • CAS No.:2809-21-4  HEDP
  • CAS No.:2809-21-4  HEDP
  • CAS No.:2809-21-4  HEDP
  • CAS No.:2809-21-4  HEDP
  • CAS No.:2809-21-4  HEDP
  • CAS No.:2809-21-4  HEDP
CAS No.:2809-21-4  HEDPCAS No.:2809-21-4  HEDPCAS No.:2809-21-4  HEDPCAS No.:2809-21-4  HEDPCAS No.:2809-21-4  HEDPCAS No.:2809-21-4  HEDP

CAS No.:2809-21-4 HEDP

Product Name: HEDP ,1-Hydroxy Ethylidene-1,1-Diphosphonic Acid
Appearance:Colorless to pale yellow aqueous solution
CAS No.:2809-21-4
HS No.: 2942000000
Package : 25kg pp bag(powder) ;270kg drum(liquid)

HEDP  CAS No.:2809-21-4   

HEDP is used as a retardant in concrete, 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

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Main Characteristic of HEDP:

1.an organo phosphoric acid corrosion inhibitor.

2.can dissolve the oxidized materials on these metals' surfaces.

3.Under 250℃ HEDP shows excellent scale and corrosion inhibition ability.

4. When built together with other water treatment chemicals, it shows good synergistic effects.

 


Specification of HEDP:

Item

Index

Index

Appearance

Colorless or light yellow transparent liquid

White,crystal,powder

Active,content(HEDP)%

58,0-62,0

89,0,min

Phosphorous,acid(as,PO33-)%

2,0,max

0,5,max

Phosphoric,acid,(asPO43-,)%

0,8,max

0,5,max

Chloride,(as,Cl-)%

0,01,max

0,01,max

pH(1%,solution)

2,max

2,max

Density,(20℃)g/cm3

1.40

-----

Fe,ion,ppm

10,max

20,max

Colour,APHA,(Hazen)

40,max

-----


Applications of HEDP:

1.HEDP is used as scale and corrosion inhibition in circulating cool water system,

2.oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc..

3.In light woven industry, HEDP is used as detergent for metal and nonmetal.

4.In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent;

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Package & Storage of HEDP:

Powder: 25KG bag ,  25MT/20'FCL .

Liquid: 270kg drum, 21.6MT/20’FCL

also be packed according to customer's needs.

Store closed containers in a cool, dry, well-ventilated area. Avoid exposure to direct sunlight.

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