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Oxy-ethylidene diphosphonic acid (abbreviated OEDFC) is a colorless crystalline powder with a hint of light brown color. It is also known by the names: ethidrine or 1-diphosphonic acid, HEDP, at the international level is called – 1-hydroxy ethylidene-1 or 1-diphosphonic acid (HEDP). It belongs to the category of diphosphonic acids, has resistance to hydrolysis and a characteristic complexing susceptibility.

It is well soluble: OEDFC (g/ l) in water – 2300, (g/ l) in DMSO – 200, (g/ l) in ethanol – 700 and (g/ l) in DMFA– 125. OEDF acid reaches melting at +198-200 ° C, and above a temperature of 250 ° C reaches full decomposition. At a temperature of 140 ° C, the OEDP acid comes into full interaction with aqueous solutions.

Repeated use of water in closed water supply systems leads to deterioration of water quality due to an increase in salt content. This in turn causes the formation of salt deposition on the surface of water pipes, and the equipment accelerates the processes of metal corrosion. Such negative phenomena can be almost completely eliminated by complex treatment of industrial water in circulating cycles with oxy-ethylidene diphosphonic acid.

According to the research results, the highest effect of inhibition of corrosion and salt deposition was found in the complexes: OEDP-oxy-ethylidene diphosphonic acid and the composition of phosphanol with OEDP.

We offer to buy OEDF acid wholesale on favorable terms. The price of our products remains the lowest in the region.

Physico-chemical properties

In order to avoid all kinds of troubles in operation, it is necessary to observe the established safety measures when working with the OEDFC. When using the substance, wear specially-designed work clothes and shoes. After the completion of the workflow with the use of EDF acid, it is recommended to take water procedures.

This product has been assigned a hazard class 3 according to the degree of exposure to human health. In contact with the skin, it can cause irritation, burning and itching.

The production of EDF-acid is possible under pressure by oxidation of phosphorus and in the presence of acetate acid, as well as using other methods.

Properties

• OEDFC is explosion– and fire–safe;
• Reaches melting at a temperature above 198 °C;
• The cumulativeness of the acid is low;
• There are embryotropic and teratogenic effects;
• The formula is C2H8O7P2.

Purpose

It is actively used in the oil, chemical and textile industries as an inhibitor of salt deposits.

Scope of application

• In the agricultural sector for disease control and plant cultivation;
• In closed heat supply systems (acts as an inhibitor of salt deposits);
• In the paper industry (bleaches pulp);
• In the perfume industry (serves as a stabilizer for various products).

Depending on the industry and the purposes of the use of the EDF, the dosage, saturation, method of application and other technological aspects are determined.

Product Advantages

The main advantage of oxy - ethylidendiphosphonic acid is:

• high solubility in water;
• complex application of the product;
• allows you to separate the additive metals that have passed into the mixture during alkalization;
• guarantees environmentally friendly production.

There is no need for sealed equipment and maximum temperatures during technical processes.

Where to buy EDF acid?

If you need to buy wholesale OEDFC acid, contact the company «ILEM». Oxy-ethylidene diphosphonic acid, which has a quality certificate, is always available. All questions regarding the cost and delivery in Kazan and Russia will be solved by the company's managers. You will get the most favorable terms of delivery from us!