Water Treatment Chemicals CAS No 2809-21-4 1-Hydroxyethylidene-1, 1-Diphosphonic Acid 98% HEDP

• CAS No.: 2809-21-4
• Formula: C2h8o7p2
• EINECS: 220-552-8
• Carboxyl No.: Dicarboxylic Acid
• Alkyl No.: Unsaturated Acid
• Appearance: Powder
• Model NO.: HEDP
• Source: Hydrolysis
• Colour: White
• Kewords 1: CAS 2809-21-4
• Keywords 2: China Factory 1-Diphosphonic Acid
• Keywords 3: High Quality 1-Diphosphonic Acid
• Keywords 4: High Quality 1-Hydroxyethylidene-1
• Keywords 5: HEDP
• Transport Package: 25kg/Carton
• Specification: 2809-21-4
• Trademark: Houjiang
• Origin: China
• HS Code: 2909500000
• Production Capacity: 18000ton /Yes

Product Description

Product Description

Water Treatment Chemicals CAS No 2809-21-4 1-Hydroxyethylidene-1, 1-Diphosphonic Acid 98% HEDP

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

Product Parameters

Item	Specification
Appearance	WHITE CRYSTAL POWDER
PH	≤2.0
Active Content (%)	≥90.0%
ACTIVE CONTENT (as HEDP.H2O) %	≥98.0%
Iron (As Fe), ppm	10ppm max
Chloride (Aa Cl-),%	0.05 max
Chloride	≤100 ppm
Fe	≤10 ppm

 

Packaging & Shipping

Our Advantages

FAQ

Q1:Can I get some samples?
A: Yes, we can supply the free sample,customer only need bear the shipping cost.

Q2:How to start orders or make payments?
A: Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T,Western Union or Paypal or secure payment.
 
Q3: How about delivery lead time?
A: About 7-10 days after payment confirmed.(Chinese holiday not included).
 
Q4:Is there any discount? 
A: Different quantity has different discount.
 
Q5: How to ship it? 
A: For small order, we would send by express such as Fedex, DHL, etc. For large order, we would send by air or sea.