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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
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;
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.
Contact: Michelle Zhang
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Phone: +86 19050308356
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Add: Zibo , Shandong, China
Michelle Zhang 
Alibaba 