Phosphoric Acid Corrosion Inhibitors Chelating Agents HEDP Solid CAS 2809-21-4

• CAS No.: 2809-21-4
• Formula: C2h8o7p2
• EINECS: 231-836-6
• Appearance: White to Slightly Colored Powder
• Grade Standard: Industrial Grade
• pH (1%Water Solution): Max 2.0
• Model NO.: HEDP solid
• CAS: 2809-21-4
• Active Content (HEDP): Min 90%
• Phosphorous Acid (as Po33-): Max 0.8%
• Product Name: HEDP
• Phosphorous Acid (as Po43-): Max 0.5%
• Fe: Max 10ppm
• Application: Phosphoric Acid Corrosion Inhibitors Chelating Age
• Transport Package: 25kg, 250kg Plastic Drum or IBC Tank
• Specification: HEDP solid
• Trademark: ZHANJIU
• Origin: China
• HS Code: 282890000
• Production Capacity: 120000mt/Year

Product Description

 
Product Name: Hydroxyethylidene Diphosphonic acid ( HEDP ) ; 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP); HEDPA ; Oxyethylidenediphosphonic Acid ( OEDP ) ; Оксиэтилидендифосфоновая кислота(ОЭДФ -кислота )
 
Application:
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.
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.
 
Molecular formula: C₂H₈O₇P₂
CAS No.: 2809-21-4
Quality standard: HG/T 3537-2010
Specification:

Items	Index
Appearance	White crystal powder
Active content (HEDP)	min 90%
Active content (HEDP·H2O)	min 98%
Phosphorous acid (as PO3^3-)	Max 0.8%
Phosphoric acid (as PO4^3- )	Max 0.5%
Chloride (as Cl^-)	Max 0.01%
pH (1% water solution)	Max 2.0
Fe, mg/L	Max 10.0ppm

 
Storage: 

   Store in a cool and ventilated place indoors, moisture-proof and sun proof, and the storage period is 12 months.
 
Package:
  HEDP solids are packed in plastic woven bags lined with polyethylene bags, with a net weight of 25kg per bag, which can also be determined according to the needs of users.
 

Product Description

 

Company Profile

 

FAQ

 

1) Do you accept small orders ?
     Yes, we can do it. Pls contact us for order details.
2) How about the price? Can you make it cheaper ?
    Price is negotiable under different conditions, we are assuring you to get the most competitive price.
3) Do you offer free samples ?
    Yes, we could offer the sample for free charge but do not pay the cost of freight.
4) What are your payment terms ?
     We usually accept T/T, L/C or other terms for negotiating.
5) Can I visit your factory in China ?
     Yes, you are welcomed to visit our factory.
6) How Can I place an order ?
    Kindly pls chat with us directly, or you could just send us inquiry, we will arrange your order accordingly after all details is  finalized.