Disodium ethylenediaminetetraacetic acid dihydrate
Properties
Disodium ethylenediaminetraacetic acid dihydrate, its chemical formula has a unique structure. The appearance is often white crystalline powder, odorless and tasteless. It has good solubility and can dissolve relatively quickly in water to form a clear solution. Its aqueous solution exhibits certain pH characteristics, which is of great significance for the pH regulation of many chemical reaction systems.

From the perspective of chemical stability, ethylenediaminetraacetic acid disodium dihydrate can maintain relatively stable chemical properties under conventional temperature and humidity conditions. However, when exposed to high temperatures or specific chemical reaction environments, it exhibits specific chemical activities and participates in various reaction processes.

Applications
In the industrial field, disodium dihydrate ethylenediamine tetraacetate is widely used. For example, in the electroplating industry, it can form a stable complex with metal ions, which helps to control the concentration of metal ions in the electroplating solution, thereby improving the quality and uniformity of the coating, making the surface of the plated part smoother and finer, and enhancing its anti-corrosion performance.

In water treatment, it plays an important role in water purification. By complexing with metal ions such as calcium and magnesium in water, it effectively reduces the hardness of water and prevents the formation of scale. Whether it is an industrial circulating water system or the softening treatment of daily water, it is inseparable from its participation, which greatly improves the utilization efficiency of water resources and the service life of equipment.

In the food industry, EDTA disodium dihydrate is often used as a food additive. It can integrate metal ions and inhibit the catalytic oxidation of metal ions on food, thereby prolonging the shelf life of food and maintaining the color, flavor and nutritional content of food. Like some canned foods, beverages, etc., adding it can effectively prevent food deterioration.

In the field of medicine, it also has a use that cannot be ignored. In some pharmaceutical preparations, as an auxiliary material, it helps to stabilize and dissolve drugs. At the same time, in medical testing, it can be used for blood anticoagulation. By complexing calcium ions in the blood, it prevents the blood from coagulating and provides a stable sample environment for medical testing.

Production
The production of disodium ethylenediaminetetraacetic acid dihydrate is usually based on a specific chemical reaction principle. First, ethylenediaminetraacetic acid is reacted with the corresponding acid substance under specific reaction conditions to generate ethylenediaminetraacetic acid.

Next, the generated ethylenediaminetraacetic acid is neutralized with sodium hydroxide. The temperature, pH and other conditions of the reaction are strictly controlled to ensure that the reaction proceeds in the direction of generating disodium ethylenediaminetraacetic acid.

After obtaining disodium ethylenediaminetetraacetate, it is combined with water molecules through a specific crystallization process to form disodium ethylenediaminetraacetate dihydrate. During the crystallization process, parameters such as temperature, solution concentration, crystallization time, etc. are precisely regulated to obtain high-purity products that meet Quality Standards. Finally, after subsequent processing steps such as filtration and drying, the final product of disodium ethylenediaminetraacetate dihydrate is obtained.