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What is EDTA? What are the applications of EDTA?

 

EDTA or Ethylenediaminetetraacetic acid is a weak acid used as a chelating agent. Ethylenediamine tetra acetic acid contains an amino carboxylic group with the formula C10H16N2O8. It is a versatile chemical compound with a wide range of applications across various industries.

EDTA is considered an anthropogenic compound with the ability to sequester various polyvalent cations, use to minimize metal contaminants, and facilitate enzymatic reactions that could be inhibited by heavy metal traces. 

How Does EDTA Work?

EDTA is a versatile compound with strong chelating properties that grabs metallic cations such as lead or calcium from the process. Its chemical structure contains four carboxylic acid groups and two amine groups, which allow it to form strong bonds with metal ions, preventing them from reacting with other substances, If the bond is weak, other chemicals can break this bond to form their own compounds. EDTA is the most widely used chelating agent for the removal of toxic heavy metal ions in wastewater treatment.

EDTA can react with metallic cations, creating a stable rigid compound that can be easily excreted from the application system. Inorganic Contaminants may react with metallic ions, forming their own compounds due to their ability to form a strong covalent bond with those metal compounds.

EDTA has antibacterial activity and metal chelation of the ligand upon gram-negative bacteria has been reported. EDTA works by forming stable complexes with metal ions through a process called chelation.



Applications Of EDTA

Wastewater treatment: EDTA used as a chelating agent for the removal of toxic heavy metal ions in wastewater treatment.

Textile industry: Prevents metal ion impurities from modifying the colours of dyed products.

Pulp & paper industry: It inhibits the ability of metal ions, especially Manganese from catalysing the disproportionation of hydrogen peroxide in chlorine-free bleaching.

Laundry: Reduces water hardness by dissolving scales of Ca2+, Mg2+, and cations, which are then less likely to interfere with soaps and detergents

‘Scrubbing’: Removes hydrogen sulphide from gas streams. This conversion is achieved by oxidizing the hydrogen sulphide to elemental sulphur, which is non-volatile.

Laboratory: Widely used for scavenging metal ions.

Cosmetics: Used in shampoos, cleaners, and other personal care products as a sequestering agent

Chemtex Speciality Limited is a pioneering speciality chemical manufacturer, The best EDTA manufacturer in India, We Tetrasodium EDTA (4Na), Disodium EDTA (2Na), EDTA Trisodium (3Na) and Pure Acid form.

Disodium EDTA (2Na) – Disodium salt of EDTA is used as sequestering / chelating agent, that helps in cleaning and descaling from metal surfaces. Also, it finds extensive usage in the removal of iron oxide/hydroxide and calcium carbonate, other organic substances and microbial slimes.

Trisodium EDTA (3Na) – It is used as a disinfectant, colour retention agent, anticoagulant for blood collection, preservative, antioxidant, chelating agent in personal care products and flavouring agent for foods. It is used to minimize metal ion contaminants, and to facilitate enzymatic reactions that could be inhibited by heavy metal traces.

Tetrasodium EDTA (4Na) – Tetrasodium EDTA is also used as a chelating agent, with the ability to sequester various polyvalent cations, that bind calcium, magnesium and other metal ions, minimizing metal ion contamination and facilitating enzymatic reactions that could be inhibited by heavy metal traces. EDTA Tetrasodium Salt also works as a slime dispersant and is even effective in reducing scale deposits and water hardness.

Key Features & Benefits

•              Optimum Chelating efficiency

•              Prevents metal contamination

•              Sequesters magnesium, calcium and other metal ions.

•              Cost-effective

Chemtex is one of the leading EDTA Manufactures in India. EDTA is the most widely used chelating agent for the removal of toxic heavy metal ions in various industrial applications such as water treatment, F&B, Laboratory processes, etc.

Follow More: https://www.chemtexltd.com/products-and-solutions/performance-chemicals/general-chemicals/edta/

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