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/