PRODUCT
Zhishang Bio Etidronic Acid CAS 2809-21-4
CAS:2809-21-4 | C2H8O7P2 |MW：206.03 | EINECS NO：220-552-8
Payment: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,EXW,FCA,CPT,CIP
Transporta: Ocean, Land,Air, DHL，TNT
Port: Shanghai Port, Qingdao Port
Product Images & Packaging
Describe
Etidronic Acid, also known as HEDP, is a diphosphate compound used in the production of detergents, water purification processes, cosmetics, and pharmaceuticals. The chemical formula of the salt produced by this acid is MnHEDP.
Etidronic Acid is a chemical raw material commonly used in industrial water treatment, household cleaning products, and personal care products.
nature
Etidronic Acid is a colorless to pale yellow viscous liquid, pure as a colorless, amorphous crystal that is miscible with water. Easily soluble in water, methanol, and ethanol.
Etidronic Acid has a high dissociation constant in water and can form stable chelates and complexes with metal ions. Can form stable adducts with compounds containing reactive oxygen species, keeping the reactive oxygen species stable.
Etidronic Acid has good chlorine resistance. Etidronic Acid is an important chelating agent that has stable chelating structures with several metal ions and is not easily hydrolyzed. Under normal photothermal conditions, it does not decompose, but about 30% of Etidronic Acid with residual chlorine of 5mg/L is decomposed.
The preparation method of Etidronic Acid
Etidronic Acid is produced by the reaction of orthophosphate, acetic anhydride, and acetyl chloride, or by the reaction of phosphorus trichloride, acetic acid, and water, or by the reaction of hypophosphite and acetic anhydride.
Etidronic Acid can also be prepared by reacting orthophosphate with acetic anhydride, or by reacting phosphorus trichloride, glacial acetic acid, and water, or by reacting hypophosphite with acetic anhydride, and finally by reacting orthophosphate with acetic anhydride
The use of Etidronic Acid
Etidronic Acid is a scale and corrosion inhibitor for boilers and heat exchangers, a complexing agent for cyanide free electroplating, a chelating agent for soap, and a cleaning agent for metals and non metals. As a water treatment agent, it has a stable structure and is not easily hydrolyzed.
Etidronic Acid has a good corrosion inhibition effect and has a significant impact on iron ions. When the iron ion concentration is greater than 3mg/L, the corrosion inhibition effect will decrease with the increase of iron ion concentration.
When used in combination with other corrosion inhibitors and scale inhibitors, Etidronic Acid has a synergistic effect that can enhance drug efficacy. The dosage is low, usually ranging from 2 to 5mg/L in compound formulations.
| Product Name: | Etidronic Acid |
| Synonyms: | ETHANE-1-HYDROXY-1,1-DIPHOSPHONIC ACID, 95+%;(1-Hydroxyethylidene)biphosphonic acid; |
| CAS: | 2809-21-4 |
| MF: | C2H8O7P2 |
| MW: | 206.03 |
| EINECS: | 220-552-8 |
| Product Categories: | Phosphonate antiscalant; |
| Mol File: | 2809-21-4.mol |
| Etidronic Acid Chemical Properties |
| Melting point | 198~199℃ |
| Boiling point | 578.8±60.0 °C(Predicted) |
| density | 1.45 (60% aq.) |
| vapor pressure | 0Pa at 25℃ |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | Methanol (Slightly), Water (Slightly) |
| pka | 1.35, 2.87, 7.03, 11.3(at 25℃) |
| form | Powder |
| color | white |
| PH | pH (1.7→100, 25℃) : 1.3～1.8 |
| Water Solubility | Soluble in water. |
| Merck | 14,3863 |
| BRN | 1789291 |
Application
Etidronic Acid, abbreviated as Etidronic Acid, is a natural phosphonic acid substance with superb chelating, deterioration inhibition, and scale restraint residential or commercial properties. The multiple phosphate teams in its molecular structure can effectively bind metal ions, and it has strong chemical stability, heat resistance, and acid-base environment. Therefore, Etidronic Acid is extensively utilized in industrial water therapy, everyday chemical sector, fabric printing and dyeing, oil removal and various other fields.
1. Industrial circulating water therapy
( 1) Scale inhibitor
Etidronic Acid can form secure complicateds with metal ions such as calcium, magnesium, and iron to avoid the deposition of scale such as calcium carbonate and calcium sulfate. It is extensively made use of in flowing cooling water systems such as nuclear power plant, chemical plants, and central air.
Contrasted to not natural polyphosphates, Etidronic Acid continues to be extremely reliable under heat and high pH conditions, and is much less vulnerable to hydrolysis and failure.
( 2) Rust prevention
By adsorbing onto steel surface areas to form a protective film, Etidronic Acid can inhibit rust of tools such as pipes and central heating boilers, particularly with significant results on carbon steel and copper alloys. Typically used in combination with other corrosion preventions to boost synergistic impacts.
( 3) Stabilizer
In the visibility of oxidizing fungicides such as sodium hypochlorite, Etidronic Acid can protect against fast decay and lengthen the action time of the agent.
2. Daily chemical products
( 1) Detergent additive
Chelating tough water ions: In washing cleaning agent and dishwashing liquid, Etidronic Acid can bind with calcium and magnesium ions in water to avoid soap scale formation and enhance cleansing effectiveness.
Steady bleach: When Etidronic Acid is combined with peroxides, it decreases the loss of reactive oxygen types and enhances stain removal ability.
( 2) Personal care items
Etidronic Acid is utilized as an anti calculus representative in tooth paste to hinder plaque deposition;
Etidronic Acid prevents item discoloration or rainfall triggered by steel ions in shampoo.
3. Fabric printing and dyeing sector
( 1) Color dispersant
Etidronic Acid can chelate metal ions in color solutions, avoiding them from binding with dyes and triggering shade adjustments or places, especially suitable for reactive and distributed dyes.
( 2) Fiber processing
Etidronic Acid safeguards fiber strength during bleaching procedure and minimizes the damages of hydrogen peroxide to cotton fabrics;
Etidronic Acid is made use of as an element of fabric softener to boost hand feeling.
4. Petrochemical and Oilfield Applications
( 1) Oilfield water therapy
Prevent scaling in water shot pipes and prolong equipment lifespan;
Etidronic Acid is used as an additive in acidizing fracturing liquid to prevent metal hydroxide rainfall from obstructing the oil storage tank.
( 2) Refining process
In catalytic cracking units, Etidronic Acid can lower stimulant fouling and boost manufacturing effectiveness.
Related References
Manufacturer of Etidronic Acid
Achievements
Advantage
Service
FAQ
Advice on Shipping
Achievements
Zhishang Bio is based in Shandong, serves the whole country, faces the world, and is determined to become an excellent supplier and service provider in the chemical industry.
As a top manufacturer of cosmetic raw materials, disinfectants, flavors and fragrances in China, we are committed to producing high-quality products and have won high praise from customers all over the world.
In the next 10 years or even longer, Zhishang Bio will always adhere to the tenet of quality first and reputation first, and devote itself to providing customers with thoughtful and perfect services.
As a professional Etidronic Acid manufacturer, Zhi shang Bio has served more than 6,000 customers around the world. Because of our high-quality products and professional services, we have won high praise from most of our customers.
Advantage
Zhishang Bio is a professional enterprise engaged in the research and development, production, and sales of chemical raw materials. It has a strong supply chain system and strict quality control standards to ensure the provision of high-quality products with high purity and stability to customers.
Zhishang Bio’s core strength is its independent research and design capabilities. It has advanced production equipment, testing laboratories and can customize chemical raw materials to meet the market demands. This includes pharmaceuticals, electronic, coatings and agricultural applications.
Zhishang Bio’s supply chain management is based on long-term relationships with domestic and international suppliers of high quality to guarantee a stable supply, optimize logistic systems, and achieve efficient distribution. This helps reduce the cost of customer purchases.
We adhere to international environmental standards and we also adhere to the concept that environmental protection and safety production are important. All production processes must comply with these standards in order to guarantee that our products will be green and sustainable.
With a professional technical team and comprehensive after-sales service, Zhishang Bio can provide customers with precise technical support, solve application problems, and help customers enhance product competitiveness.
We are always customer-oriented and committed to becoming a trusted chemical raw material partner.
Service
Zhishang Biography is dedicated to using clients extensive and expert service, including chemical raw material. The customers will certainly receive hassle-free, efficient and one-stop options.
1. Custom-made Supply Solutions
Zhishang Bio provides tailored services for clients in the chemical basic material sector, including special bit dimension, solvent residue control, stability optimizations and more. Clients can personalize their services to satisfy details requirements in industries such as drugs, electronic devices, and finishings.
2. Strict quality assurance
Zhishang Bio utilizes advanced screening equipment and stringent quality examination procedures, in addition to various other files, to guarantee that every batch of products is certified with international criteria such ISO GMP, REACH, and so on. Customers are also given with full quality records and conformity documents.
The supply chain is secure
Zhishang Bio has actually established lasting calculated collaborations with worldwide makers of top notch raw materials to make certain a secure supply, maximize the storage facility and logistics system, and assistance both small-scale examinations and large orders. It adjusted to the changing requirements of clients by responding flexibly to these changes.
4. Technical support
Zhishang Bio’s technical group can offer suggestions on product applications, formula optimization and analysis of industry patterns to aid clients fix technological troubles during production and boost item efficiency.
5. Efficient after-sales service
Zhishang Bio provides complete monitoring, reacts to client requests and delivers promptly. This will certainly make certain customer complete satisfaction.
Zhishang Biography intends to help consumers expand their service by providing the very best solutions and chemical resources.
FAQ
DO YOU ACCEPT SAMPLE ORDER?
We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.
WHAT’S YOUR MOQ?
Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.
IS THERE A DISCOUNT?
Different quantity has different discount.
HOW TO CONFIRM WHETHER THE PRODUCT QUALITY MEETS OUR NEEDS BEFORE PLACING AN ORDER?
You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.
DO YOU SUPPLY PRODUCT REPORT?
Yes. We’ll give you product analysis report before shipping.
LEARN MORE ABOUT US
Shandong Look Chemical
Advice on Shipping
1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).
2. For products ≤500kg, we generally recommend air freight, which is usually called FOB, CFR or CIF service (fast and efficient).
3. For products >500kg, we generally recommend shipping by sea, which is usually called FOB, CFR or CIF service (economical, safe).
4. For high-value products, please choose air or express to ensure the safety of product transportation.
Company Info
Zhishang Bio company in China that exports chemicals, Cosmetic raw materials, and Intermediates for over 70 countries now.
And a range of 50,000 products with the best quality and competitive price to meet your different purchasing needs.
The company integrates research and development, production, and trade, with a modern production base, advanced testing equipment, and an experienced technical team to ensure that products reach industry-leading levels in purity, stability, and environmental friendliness.
