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HEDP 98%
SINOBIO
2931900090
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 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 can react with metal ions in water system to form hexa-element chelating complex, especially with calcium ions.
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.
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.
HEDP (Hydroxyethylidene Diphosphonic Acid) has a wide range of applications, which can be divided into the following areas:
1. Industrial circulating cooling water system:
HEDP is used as scale and corrosion inhibitor in industrial circulating cooling water system of electric power, chemical industry, metallurgy, fertiliser and so on. It shows good scale inhibition effect and obvious solubility limitation effect by forming hexacyclic chelates with metal ions in water, especially calcium ions.
2. Cleaning agent:
In the light textile industry, HEDP can be used as a cleaning agent for metal and non-metal.
It is easily soluble in water, has the effect of chelating metal ions, and is less aggressive to the metal substrate, easy to passivate after pickling, and not easy to produce floating rust.
3. Stabilizer and colour-fixing agent:
In bleaching and dyeing industry, HEDP can be used as peroxide stabilizer and colour fixing agent.
4. Complexing agent:
In cyanide-free plating industry, HEDP is used as complexing agent.
5. Pharmaceutical industry:
HEDP is used as a carrying agent for radioactive elements in the pharmaceutical industry.
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 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 can react with metal ions in water system to form hexa-element chelating complex, especially with calcium ions.
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.
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.
HEDP (Hydroxyethylidene Diphosphonic Acid) has a wide range of applications, which can be divided into the following areas:
1. Industrial circulating cooling water system:
HEDP is used as scale and corrosion inhibitor in industrial circulating cooling water system of electric power, chemical industry, metallurgy, fertiliser and so on. It shows good scale inhibition effect and obvious solubility limitation effect by forming hexacyclic chelates with metal ions in water, especially calcium ions.
2. Cleaning agent:
In the light textile industry, HEDP can be used as a cleaning agent for metal and non-metal.
It is easily soluble in water, has the effect of chelating metal ions, and is less aggressive to the metal substrate, easy to passivate after pickling, and not easy to produce floating rust.
3. Stabilizer and colour-fixing agent:
In bleaching and dyeing industry, HEDP can be used as peroxide stabilizer and colour fixing agent.
4. Complexing agent:
In cyanide-free plating industry, HEDP is used as complexing agent.
5. Pharmaceutical industry:
HEDP is used as a carrying agent for radioactive elements in the pharmaceutical industry.
HEDP 98% : 25kg, 25 MT with pallet, 27 MT without pallet.
Storage for one year in shady room and dry place.
