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HEDP 60%
SINOBIO
3808940090
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
Structural Formula:
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.
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.
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. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid.
HEDP (Hydroxyethylidene Diphosphonic Acid) 60% aqueous solution has a wide range of applications:
1. Scale and corrosion inhibitor:
*HEDP 60% is a kind of organic phosphonic acid scale and corrosion inhibitor, which can form stable complexes with many metal ions such as iron, copper, zinc and so on, so as to dissolve the oxides on the metal surface.
* At 250℃, it can still play a good corrosion and scale inhibition, and remains stable and not easy to be hydrolysed at high pH.
*In water treatment, HEDP 60% is particularly suitable as a scale and corrosion inhibitor for circulating cooling water and boiler water, and can be used in combination with other water treatment agents, showing ideal synergistic effects.
2. Electroplating field:
*HEDP 60% is also widely used in the electroplating field as an additive in the electroplating process, which plays a role in improving the quality and efficiency of electroplating.
3. Other industrial applications:
*HEDP 60% can also be used as peroxide stabiliser (especially good peroxide stabilisation under high temperature conditions), chelating agent for textile printing and dyeing, dispersing agent for pigment, oxygen delignification stabiliser, trace element carrying agent for fertiliser, concrete additive and so on.
* It is also used in paper making, metal pickling and cosmetics.
HEDP 60% : 220 kg drum or 1250 kg / IBC.
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
Appearance: 60% clear liquid
Structural Formula:
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.
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.
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. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid.
HEDP (Hydroxyethylidene Diphosphonic Acid) 60% aqueous solution has a wide range of applications:
1. Scale and corrosion inhibitor:
*HEDP 60% is a kind of organic phosphonic acid scale and corrosion inhibitor, which can form stable complexes with many metal ions such as iron, copper, zinc and so on, so as to dissolve the oxides on the metal surface.
* At 250℃, it can still play a good corrosion and scale inhibition, and remains stable and not easy to be hydrolysed at high pH.
*In water treatment, HEDP 60% is particularly suitable as a scale and corrosion inhibitor for circulating cooling water and boiler water, and can be used in combination with other water treatment agents, showing ideal synergistic effects.
2. Electroplating field:
*HEDP 60% is also widely used in the electroplating field as an additive in the electroplating process, which plays a role in improving the quality and efficiency of electroplating.
3. Other industrial applications:
*HEDP 60% can also be used as peroxide stabiliser (especially good peroxide stabilisation under high temperature conditions), chelating agent for textile printing and dyeing, dispersing agent for pigment, oxygen delignification stabiliser, trace element carrying agent for fertiliser, concrete additive and so on.
* It is also used in paper making, metal pickling and cosmetics.
HEDP 60% : 220 kg drum or 1250 kg / IBC.
Storage for one year in shady room and dry place.
