HEDP (hydroxyethylidene diphosphonic acid) is an odorless organic phosphorus chemical compound. It is a colorless to yellowish, acidic liquid. It is also an organic phosphonic acid corrosion inhibitor. It is an organic substance in the phosphonic acid family. It is generally known as a water treatment chemical.
-analizi.jpg "HEDP (Hydroxyethylidene Diphosphonic Acid) Analysis")
HEDP is used in a variety of industrial applications such as water treatment corrosion inhibitors and detergents. It also shows good stability in the presence of chlorine. It stands out for its anti-corrosion properties in the presence of zinc and other phosphates.
An important feature of this compound is that it dissolves oxidized materials on the surface of metals. It shows excellent anti-corrosion effects under 250 degree temperature. Hydroxyethylidene diphosphonic acid has good chemical stability at high pH. Therefore, it is difficult to hydrolyze and decompose under normal light and heat conditions. Its acid / alkali and chlorine oxidation tolerance is better than other organic phosphonic acids (eg salts).
The solid state of hydroxyethylidene diphosphonic acid is crystalline powder. It is suitable for use in winter and freezing regions due to its high purity. Solid state HEDP is used as a cleaning agent in electronics and as an additive in everyday chemicals. But because there is too much impurity in the liquid, it cannot be used for electronic cleaning and daily use.
Hydroxyethylidene diphosphonic acid can chelate with iron, copper and zinc ions. In other words, it can react with metal ions in the water system to form a chelating complex, especially with calcium ions.
Briefly, the main uses of hydroxyethylidene diphosphonic acid are:
Hydroxyethylidene diphosphonic acid (HEDP) is a compound that causes severe skin burns and eye damage. If it comes into contact with the eyes, it can cause problems in the eyes. Personal protective equipment must be used before use.
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