HEDP 60% CAS 2809-21-4 Phosphoric Acid Corrosion Inhibitors Chelating Agents

• CAS No.: 2809-21-4
• Formula: C2h8o7p2
• EINECS: 231-836-6
• Appearance: White to Slightly Colored Powder
• Grade Standard: Industrial Grade
• Phosphorous Acid (as Po33-): Max 2.0%
• Model NO.: 60% liquid
• Density (20ºC) g/cm3: 1.43-1.45
• pH (1%Water Solution): Max 2.0
• Active Content (HEDP): Min 60%
• Fe: Max 10ppm
• Phosphorous Acid (as Po43-): Max 0.8%
• Chlorides (as Ci-): Max 100ppm
• Transport Package: 25kg, 250kg Plastic Drum or IBC Tank
• Specification: 60% liquid
• 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 )

Molecular formula: C₂H₈O₇P₂

CAS No.: 2809-21-4

Quality standard: GB/T 26324-2010

IMO Class: 8

UN NO.: 3265

 

Application: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.

 

Specification:

Items	Index
Appearance	Colorless or light yellow transparent liquid
Active content (HEDP)%	58.0-62.0
Phosphorous acid (as PO3^3-)%	Max 2.0
Phosphoric acid (as PO4^3- )%	Max 0.8
Chloride (as Cl^-)%	Max 0.02
pH (1% water solution)	Max 2.0
Density (20ºC)g/cm^3	1.43 ~1.45
Fe, mg/L	Max 10.0ppm
Ca sequestration (mg CaCO3/g)	Min 500.0
Color ( APHA )	Max 30

 

 

Storage: Store in a cool and ventilated place indoors, moisture-proof and sun proof, and the storage period is 10 months.

 

Safety protection: HEDP is acidic. Avoid contact with eyes, skin or clothes. Once splashed on the body, wash it with plenty of water immediately.

 

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.