EDTA (Ethylenediaminetetraacetic acid)


EDTA (Ethylenediaminetetraacetic acid)
EDTA (Ethylenediaminetetraacetic acid) and its salts, like the following products, are crystalline powders that are often sold as aqueous solutions.
Calcium disodium EDTA ,
ED ammonium EDTA,
EDTA potassium,
Disodium EDTA, TEA-EDTA,
Tetrasodium EDTA,
EDTA potassium
Trisodium EDTA
It is an aminopolycarboxylic acid and a colorless, water-soluble solid. It’s binding base is Ethylenediaminetetraacetic, which is widely used to dissolve lime.
Applications as a ligand and Chelate Agents of hexadentate include the ability of EDTA to separate metal ions, such as, + Ca2 + and + Fe3 +.
In cosmetics and personal care products, these materials are widely used and can be used to produce many types of products:
Skin care and cleansing products
Personal cleaning products
  • Bath soap
Shampoo and conditioner
  • hair color
  • Hair bleaches
The answer to the question that why it is used in cosmetics and personal care products is that EDTA sodium and its constituents bind to metal ions, which inactivates them.
The metal ions bound helps prevent the cosmetics and personal care products decay, as well as maintaining transparency, protecting aromatic compounds and keeping them stable.
Structure of Ethylenediaminetetraacetic acid (EDTA)

Ethylenediaminetetraacetic acid (EDTA) specifications
  chemical properties:
Molecular formula: C10H16N2O8
Molecular weight: 292.24 g / mol
Appearance: White crystalline powder
Density: 0.86 g / cm3
Water solubility: 0.5 g /l (25 ° C)
Melting point: 250 ° C
Article 1: Safety data sheet
According to the guidelines for the safety of this product, high consumption of this acid can have health risks.
EDTA with 2 to 2.2 g / kg has no acute toxicity. However, research on laboratory animals shows that the substance is both cellular and genetically toxic, even in tested animals.
Research has shown that oral intoxication can have side effects and negative effects, such as, infertility and lack of growth.
Other studies by Lingan have shown that the degree of toxicity through skin contact (contact with most cosmetics) and respiratory contact (in powder cosmetics) is much lower than through oral contact.
Sale market and application of Ethylenediaminetetraacetic acid
Ethylenediaminetetraacetic acid (EDTA) is a chemical that is often used for industrial and medical purposes.
EDTA is also known as an acid, and its salts have been used to counteract the effects of hard water and heavy metal ions on textiles. These metal chelators are widely used in cosmetics, food and medicine.
EDTA produced by Padidavarandegan Jam Company has a very high quality and its purchase has been welcomed by domestic and foreign manufacturers in various industries, including textiles and cosmetics.
Some of the uses of Ethylenediaminetetraacetic acid are as follows:
Industrial application
 In industry, EDTA is mainly used to separate metal ions in aqueous solution. In the textile industry, this product prevents the change of metal ion impurities in the color of dyed products. In the pulp and cardboard industry, EDTA inhibits the ability of metal ions, particularly Mn2 +, to catalyze the disproportion of hydrogen peroxide used in chlorine-free bleaching.
As a food preservative
Similarly, EDTA is added to some foods as a preservative or stabilizer to prevent catalytic oxidative staining that is catalyzed by metal ions. In beverages containing ascorbic acid and sodium benzoate, EDTA reduces the formation of benzene (a carcinogen).
A substance to reduce the hardness of water
To reduce the hardness of water in laundry applications and boilers, EDTA and its complexes are used to attach Ca2 +, + Mg2 + as well as other metal ions. These metal ions no longer precipitate after binding to EDTA and therefore do not interfere with the function of soaps and detergents. For this reason, cleaning solutions often contain EDTA.
Used in the cement industry
EDTA is used in the cement industry to determine free lime and free magnesium in cement and clinker.
Used in the manufacture of medicine
A special salt from EDTA is used to bind metal ions in chelating therapy, such as, treating mercury and lead poisoning. In a similar way, it is used to remove extra iron or to treat thalassemia.
Medical and dental uses
Dentists and endodontists use EDTA to prepare root canals. In fact, the addition of a surfactant, such as EDTA cause the calcifications within the root channel to be unclenched and allows the channel to be measured.
It is also used as a preservative (usually to enhance the function of another preservative, such as, benzalkonium chloride or thiomersal, in the preparation of eye drops.
EDTA is widely used for making anticoagulants because it can chelate the calcium in blood samples and preserve the morphology of blood cells.
EDTA has been shown to be very effective in reducing bacterial growth during implantation of intraocular lenses (IOL).



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