HEDP/Etidronic Acid powder
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HEDP/Etidronic Acid Liquid
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HEDP/Etidronic Acid powder
Additional information
| Appearance: | White crystal powder |
|---|---|
| CAS No.: | 2809-21-4 |
| Certification: | ISO9000, SGS, BV |
| EINECS: | 220-552-8 |
| Molecular Formula: | C2h8o7p2 |
1. The most efficient and perfect chemical industry chain
RICHVAN- scientific research center in cooperation with the government, modern production equipment, intelligent production management system, perfect production raw material supply chain, independent chemical logistics and transportation system, 14 years of industrial operation, are the key to our cost saving and quality assurance Factors that make our product prices more competitive in the market. Our goal is to provide customers with high-quality products, the most competitive prices, the shortest delivery time and perfect and professional after-sales service.
2. The most competitive price is the foundation of enterprise development
The most efficient and complete chemical industry chain and more than 14 years of industry experience are the keys to providing our customers with the most competitive prices and helping them reduce competition costs.
3. Pay attention to product quality, just like our reputation
Our factory requires a double inspection quality control system in the production process of each product, which is the key guarantee for our quality control, and our products have passed BV, ISO9001 and SGS, quality control can be guaranteed. At the same time, all materials are tested in our laboratory before each shipment to confirm the quality twice.
4. More than 14 years experience in chemical industry
RICHVAN- With more than 14 years of experience in the chemical industry, it is one of the leading chemical raw material suppliers in China. With a professional scientific research and technical team, with rich experience and technology, we provide our customers with in-depth technical support and a variety of application solutions, ensure quality, save costs, and win unanimous approval from our customers.
5. Shortest delivery time
Our factory has 7 24-hour production lines, 14 regular production lines and 2 spare production lines, 90% of the orders are shipped within 15-25 days after receiving the payment, any urgent orders can be supported.
Specification
| Chemical Name | HEDP/Etidronic Acid/1-Hydroxy Ethylidene-1/1-Diphosphonic Acid |
| Formula: | C2h8o7p2 |
| CAS No.: | 2809-21-4 |
| Appearance: | White crystal powder |
| EINECS: | 220-552-8 |
| Certification: | ISO9000, SGS, BV |
White crystal powder
| tems | Index |
| Appearance | White crystal powder |
| Active content (HEDP)% | 90.0 min |
| Active content (HEDP·H2O)% | 98.0 min |
| Phosphorous acid (as PO33-)% | 0.8 max |
| Phosphoric acid (as PO43- )% | 0.5 max |
| Chloride (as Cl-)% | 0.01 max |
| pH (1% water solution) | 2.0 max |
| Density (20ºC)g/cm3 | – |
| Fe, mg/L | 5.0 max |
| Colour APHA (Hazen) | – |
| Ca sequestration (mg CaCO3/g) | – |
HEDP is a kind of scale and corrosion inhibitor which belongs to organic phosphonic acid. It can form stable complexes with iron, copper, zinc and other metal ions, and can also dissolve the metal surface oxide. Under 250 ºC condition, HEDP can still play a good corrosion and scale inhibition effect.
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 show better than that of other organic phosphonic acid (salt) acids (salt).
HEDP can react with metal ions in water system to form hexa-element chelating complex, especially with calcium ions. Therefore, HEDP has good anti-scale and visible threshold effects. When used in combination with other water treatment chemicals, it shows ideal synergistic effects.
HEDP solid state is a high purity product, suitable for cold winter areas; Because of its high purity, it is especially used as the cleaning agents in electronics industry, and additives in daily chemicals.
Applications:
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.
Package & Storage
HEDP Solid: 25kg inner liner PE bag, 1000kg woven bag, or customers’ requirement.
Storage for ten months in room shady and dry place.
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