HEDP CAS 2809-21-4 HEDP 60% Liquid Water Treatment Etidronic Acid

• Customization: Available
• CAS No.: 2809-21-4
• Formula: C2h8o7p2
• Model NO.: HEDP
• EINECS: 220-552-8
• Acid-Base Property: Acidic Surface Disposal Agent
• Certification: WQA, REACH
• Environmental Protection: Yes
• Color: Colorless
• Appearance: Liquid
• Type: Oil / Water Separation Agent
• Brn: 1789291
• Density: 1.5–1.6 G/Cm³
• Toxicity: Low - Toxic
• Solubility: Miscible with Water
• Transport Package: 250kg/Drum or 1250kgs/IBC
• Specification: C2H8O7P2
• Trademark: SINOBIO
• Origin: Dalian
• HS Code: 29319090
• Production Capacity: 5000000kg/Year

Product Description

Product Description

1-Hydroxy Ethylidene-1,1-Diphosphonic Acid / HEDP

CAS No.   2809-21-4

Molecular Formula:   C2H8O7P2                                                                                         

Molecular weight:  206.02

Hazard class/UN No./Packaging: UN 3265 8/PG III

Appearance: 60% clear liquid

Hydroxyethylidene diphosphonic acid (HEDP) is a new type of chlorine-free electroplating complexing agent. It is used as the main agent for stable water quality in the circulating cooling water system, and plays the role of corrosion and scale inhibition. This product is one of the organic polyphosphonic acid-free water tablet conditioners.

HEDP is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn ions to form stable chelating compounds.It can dissolve the oxidized materials on these metals' surfaces. HEDP shows excellent scale and corrosion inhibition effects under temperature 250℃. HEDP has good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions. Its acid/alkali and chlorine oxidation tolerance are better than that of other organophosphoric acids (salt). HEDP can react with metal ions in water system to form hexa-element chelating complex, with calcium ion in particular. Therefore, HEDP has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.

Technical Data Sheet (TDS)

Item	Specification
Appearance	colorless liquid
PH	≤2.0
Active Content (%)	≥60.0%
ACTIVE CONTENT(as HEDP.H2O) %	≥60.0%
Iron (As Fe), ppm	10ppm max
Chloride (Aa Cl-),%	0.05 max
Chloride	≤100 ppm
Fe	≤10 ppm

Packing & Delivery

HEDP liquid: 220 kg drum or 1250 kg / IBC or customers' requirement. 

Storage for one year in shady room and dry place.

Company Profile

Dalian Sinobio Chemistry Co.,Ltd was established in 2011 and located in beautiful costal city .We focus on fungicide and water treatment's production and export over 12 years.
Sinobio is a group company who has 2 production sites in China: One is in Jiangxi province which produce fungicide such as lsothiazolinon,BIT,Zinc Pyrithione ,etc.Our products can be widely used in the fields of oil-field water injection, pulp and paper making,water treatment,marine paint, wood, plastic leather,paint coating,cosmetics,personal care products, textiles, fiber, building materials,etc. for sterilization,corrosion prevention and mildew prevention.In particular, it has been widely recognized in the application of sterilization,algae killing,scale inhibition and corrosion inhibition of circulating cooling water in petrochemical, power metallurgy and other industrial fields.
The other one was located in Gansu province which produce water treatment chemicals such as ATMP, HEDP,THPS,TXP etc .Our company has realized the research and development, production and sales of products and provided a series of services such as water treatment engineering solutions. The products are widely used in electric power,chemical industry, metallurgy, textile,paper making, washing, building mate- rials and other fields.
All these products are exported to Europe,America,Southeast Asia and other parts of the world, and have won the praise of custom.
SINOBIO Warmly welcome customers from at home and abroad to cooperate with us for common success.

Why Choose Us

Exhibition & Certifications

We have more than 20+ years of experience in chemical exhibitors andalways participated in domestic and international exhibitions,such as CPHI, CHEMSPEC, CAC, KHIMIA and so on. Choose SINOBIO Chemistry,  we will be your professional chemical raw material supplier. Looking forward to meeting you in our exhibitions.

FAQ

1. Can I get samples ?
Yes, we can supply specified quantity free sample, you pay for the freight charge only.

2. Which documents do you support?

We can supply COA, TDS, MSDS and so on.

3. What is your MOQ?
Normally speaking, our MOQ is 1 standard package. But we can supply free sample for testing before mass order.

4. 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.

5. How to pay?

PI will be sent firstly after our aligned products specification. Payment by T/T, X-Transfer ,LC and so on.

6. What is your after-sales service?

SINOBIO aim to keep long term cooperation with all the customers, will sign a legally binding sales contract with customers for every order.  If you have doubt or concern on our products or service, pls feel free to contact with us.