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  • HEDP
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  • HEDP
  • HEDP
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HEDP

Other Name:1-Hydroxy Ethylidene-1,1-Diphosphonic Acid
Appearance:Colorless Liquid or White Crystal Powder
Active Content: 58-62%(Liquid), 90%(Powder)
CAS No.:2809-21-4             
HS No.: 2942000000
MOQ: 25mt

HEDP/1-Hydroxy Ethylidene-1,1-Diphosphonic Acid

HEDP is an organic compound, the molecular formula is C2H8O7P2, the molecular weight is 206.03, white crystalline particles, water-soluble is a colorless to pale yellow liquid. This product is easily soluble in water, soluble in methanol and ethanol. It has a large dissociation constant in water and can form stable complexes with metal ions. It can form stable adducts with compounds containing active oxygen to keep active oxygen stable. Low toxicity.

Mainly used as scale inhibitor and corrosion inhibitor for boilers and heat exchangers, complexing agent for cyanide-free electroplating, chelating agent for soap, metal and non-metal cleaning agent.

HEDP

Specification of HEDP:

Item

Index

Index

Appearance

Colorless or light yellow transparent liquid

White crystal powder

Active,content(HEDP)%

58,0-62,0

90min

Phosphorous,acid(as,PO33-)%

2,0max

0,5max

Phosphoric,acid,(asPO43-,)%

0,8max

0,5max

Chloride,(as,Cl-)%

0,01max

0,01max

pH(1%,solution)

2max

2max

Density,(20℃)g/cm3

1.40

-----

Fe,ion. ppm

10max

20max

Colour APHA(Hazen)

40max

-----

 

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;

 

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.

HEDP

 

Certificate

Product Certificate.jpg

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