The tetrasodium salt of ethylenediaminetetraacetic acid, referred to as
the tetrasodium salt of ethylenediaminetraacetic acid, is of great function in the synthesis and separation of substances. Its properties are stable, and it can be well integrated with various metal ions to form a stable complex.

Looking at the fields of chemical industry, when dyeing and weaving, the color of fabrics is always dyed with this salt, so it removes the disturbance of metal ions in water, so that the color is even and firm. And in the tanning industry, the effect of tanning aids, the leather is softer and firmer.

It is also indispensable in the medical way. The existence of blood samples, adding this salt to resist coagulation, prevent the aggregation of blood cells, and the coagulation of blood, and ensure the integrity of the sample The preparation of pharmaceuticals can stabilize the composition of the drug, prevent it from being changed due to metal catalysis, and prolong the validity of the drug.

In the food industry, it can be used as a color protector and preservative. The storage of fruits and vegetables, together with the inhibition of enzymatic browning, keeps its color delicious; in canned food, it prevents the taste change and quality failure caused by metal ions, and protects the quality and taste of the food.

Investigate the reason for its wide use, covering its strong complexing power, and can have a good effect on all metal ions, such as calcium, magnesium, iron, copper, etc. And in different acid and alkali environments, it can show its work, and it is applicable to a wide range.

Therefore, although the tetrasodium salt of ethylenediaminetetraacetic acid is intangible and colorless, it is an important role in the industry, medicine, and food industries. It is silently used for its great purpose, which is beneficial to people's livelihood.