Manufacturer Hydroxyethylidene Diphosphonic Acid CAS 2809-21-4 HEDP Supplier Water Treatment Liquid

• CAS No.: 2809-21-4
• Formula: C2h8o7p2
• EINECS: 220-552-8
• Acid-Base Property: Acidic Surface Disposal Agent
• Environmental Protection: Yes
• Color: White
• Model NO.: SINOBIO-JM01
• Appearance: Liquid
• Type: Oil / Water Separation Agent
• Product Name: Hydroxyethylidene
• Other Name: Diphosphonic Acid
• Use: Water Treatment
• Package: 25kg/Drum
• Density: 1.45
• Stortage: Sealed in Dry,Room Temperature
• Transport Package: IBC Drum
• Specification: 25kgs
• Trademark: Sinobio
• Origin: China
• HS Code: 29319090
• Production Capacity: 1000kgs/Month

Product Description

Product Description

 

Hydroxyethylidene Diphosphonic Acid

Items	Standards	Standards
Appearance	Colorless transparent liquid	Colorless transparent liquid
Active content(as HEDP)	58.0-62.0 %	60.8 %
Phosphoricacid(as PO43-)	≤0.8 %	0.29 %
Chloride(asCl-)	≤100 ppm	52 ppm
pH(1%watersolution)	1.5-2.0	1.73
Density	≥1.40 g/cm3	1.457 g/cm3
FeIons(asFe2+)	≤10 ppm	4.59 ppm
CaciumSequestering ability	≥500 mg/g	511.74 mg/g
ColorAPHA	≤30	10

Etidronic acid (HEDP) is a new type of chloride free electroplating complexing agent, which is used as the main agent to stabilize the water quality in the circulating cooling water system and plays a role of corrosion and scale inhibition.
This product is one of the organic polyphosphonic acid free water tablets, and there are also other varieties of this type of product produced domestically, such as amino trimethylene phosphonic acid (ATMP): [CH2PO (OH) 2] 3N, and  (EDTMP), etc. Organic polyphosphonic acid is a type of water treatment agent developed in the late 1960s and confirmed around the 1970s. The emergence of this type of treatment agent has taken a significant step forward in water slicing technology. Compared with organic polyphosphates, organic polyphosphonate free acids have the characteristics of chemical stability, difficult hydrolysis, high temperature resistance, small dosage, and scale moderation. It is a type of cathodic corrosion inhibitor and a type of non chemical equivalent scale inhibitor; When used in combination with other water treatment agents, it exhibits ideal synergistic effects. It has excellent chelating properties for many metal ions such as calcium, magnesium, copper, zinc, etc., and even has good deactivation effects on inorganic salts of these metals such as CaSO4, CaCO3, MgSiO3, etc. Therefore, it is widely used in water treatment technology.
 

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FAQ

Q1: Can I get samples?
 
A:   Yes, we can supply free sample, you pay for the freight charge only.
 

Q2: How to pay?

A: PI will be sent firstly after our aligned products specification. Payment by Paypal , T/T, Western Union,LC, Alipay are ok
 

Q3: How is your MOQ?

A: Normally speaking, our MOQ is 1kg. But we can also accept less quantity such as 100g on the condition that sample charge is 100% paid.
 

Q4: How can you guarantee the quality of your products?

1. Our staff are all experienced in chemical products or related major background, they are well trained before quotation.

2. Free sample or pre- shipment sample are available for our new cooperation before you place commercial order. We are sure the same specification commercial products as sample to customers

3. Third Party Inspection like SGS can be arranged according to your requirement before shipping.

4. On-Spot QC in our APPROVED associated production bases with necessary certification like GMP, ISO etc.