Email : zhou@sinobiochemistry.com Phone : +86-13941198570
 |
| Quantity: | |
|---|---|
HEDP 98%
SINOBIO
3808940090
CAS No. 2809-21-4
Molecular Formula: C2H8O7P2
Molecular weight: 206.02
Hazard class/UN No./Packaging: UN 3265 8/PG III
Structural Formula:
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°C. 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 chlo rine 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.
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.
Used in detergents, water treatment, cosmetics and pharmaceuticals. Used in corrosion inhibition in circulating cool water systems, oil fields and low-pressure boilers with electric power, the chemical industry, metallurgy and fertilizers.
Hydroxyethylidene diphosphonic acid (HEDP), also known as hydroxyethylidene diphosphonic acid, is an organophosphonic acid analogue with multiple functions. Its main functions and uses include the following aspects:
1. Scale and Corrosion Inhibition
-Scale inhibition effect: HEDP can form stable complexes with calcium, magnesium and other metal ions in water, thus preventing these ions from depositing on the surface of equipment to form scale. This scale inhibition effect is particularly important in the industrial circulating cooling water system, can extend the service life of the equipment, improve the operational efficiency of the system.
-Corrosion inhibition: HEDP can also form a layer of protective film on the metal surface, preventing the metal and corrosive media direct contact, thus playing a corrosion inhibition effect. This corrosion inhibition effect is important for the protection of boilers, pipelines and other metal equipment from corrosion.
2. Cleaning effect
-Because HEDP can form stable complexes with iron, copper, aluminium, zinc and other metal ions, it can be used to clean rust, inorganic salt scale and other dirt in boilers and pipelines. This cleaning action helps to restore the normal operating condition of the equipment and improve the operating efficiency of the equipment.
3. Electroplating application
-HEDP is also widely used in electroplating industry. It can be used as the main material for cyanide-free electroplating and formulated into cyanide-free copper plating solution. In the process of electroplating, HEDP can improve the bonding force between the plating layer and the substrate, making the plating layer smooth and with good colour. In addition, immersing the plated parts in HEDP solution before plating can also turn the plated parts into activated state and further improve the plating effect.
4. Other applications
-HEDP can also be used as a colour fixing agent in bleaching and dyeing industry, hydrogen peroxide stabilizer and so on.
-In oilfield water injection treatment, HEDP can also play the role of scale and corrosion inhibition, to protect water injection equipment from corrosion and scaling.
HEDP 98% : 25kg, 25 MT with pallet, 27 MT without pallet.
Storage for one year in shady room and dry place.
CAS No. 2809-21-4
Molecular Formula: C2H8O7P2
Molecular weight: 206.02
Hazard class/UN No./Packaging: UN 3265 8/PG III
Structural Formula:
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°C. 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 chlo rine 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.
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.
Used in detergents, water treatment, cosmetics and pharmaceuticals. Used in corrosion inhibition in circulating cool water systems, oil fields and low-pressure boilers with electric power, the chemical industry, metallurgy and fertilizers.
Hydroxyethylidene diphosphonic acid (HEDP), also known as hydroxyethylidene diphosphonic acid, is an organophosphonic acid analogue with multiple functions. Its main functions and uses include the following aspects:
1. Scale and Corrosion Inhibition
-Scale inhibition effect: HEDP can form stable complexes with calcium, magnesium and other metal ions in water, thus preventing these ions from depositing on the surface of equipment to form scale. This scale inhibition effect is particularly important in the industrial circulating cooling water system, can extend the service life of the equipment, improve the operational efficiency of the system.
-Corrosion inhibition: HEDP can also form a layer of protective film on the metal surface, preventing the metal and corrosive media direct contact, thus playing a corrosion inhibition effect. This corrosion inhibition effect is important for the protection of boilers, pipelines and other metal equipment from corrosion.
2. Cleaning effect
-Because HEDP can form stable complexes with iron, copper, aluminium, zinc and other metal ions, it can be used to clean rust, inorganic salt scale and other dirt in boilers and pipelines. This cleaning action helps to restore the normal operating condition of the equipment and improve the operating efficiency of the equipment.
3. Electroplating application
-HEDP is also widely used in electroplating industry. It can be used as the main material for cyanide-free electroplating and formulated into cyanide-free copper plating solution. In the process of electroplating, HEDP can improve the bonding force between the plating layer and the substrate, making the plating layer smooth and with good colour. In addition, immersing the plated parts in HEDP solution before plating can also turn the plated parts into activated state and further improve the plating effect.
4. Other applications
-HEDP can also be used as a colour fixing agent in bleaching and dyeing industry, hydrogen peroxide stabilizer and so on.
-In oilfield water injection treatment, HEDP can also play the role of scale and corrosion inhibition, to protect water injection equipment from corrosion and scaling.
HEDP 98% : 25kg, 25 MT with pallet, 27 MT without pallet.
Storage for one year in shady room and dry place.
