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EDTA Disodium Salt - Dissolvine Na2

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100g £8.32 £9.99
500g £14.16 £16.99
1Kg £17.50 £21.00

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EDTA disodium salt

Ethylenediami­netetraacetic acid disodium salt

Technical grade

Disodium EDTA occurs as white, odourless crystalline granules or a white to nearly white powder. It is freely soluble in water but insoluble in alcohol. It is used as sequestrant, chelating agent, stabiliser, antioxidant synergist and preservative. Chelating agents bind or capture trace amounts of iron, copper, manganese, calcium and other metals that occur naturally in many materials.

Properties of EDTA Disodium:

  • Synonyms: (ethylenedini­trilo)tetraace­tic acid disodium salt, disodium ethylene diamine tetraacetate, disodium dihydrogen ethylenediami­netetraacetate, Dissolvine Na2-P
  • Quality: 99% minimum
  • CAS No. 139-33-3
  • EC No. 205-358-3
  • Formula: C10H14N2Na2O8 2H2O
  • Molecular weight: 372.24
  • Appearance: white crystaline solid.
  • Melting Point: 110C (230F)
  • Solubility: Easily soluble in hot water. Soluble in cold water 100g/L @20C
  • pH (1%): 4 -5

Uses for EDTA disodium salt:

  • In the detergent industry as a stabilizer.
  • In the chemical industry as a metal carrier in redox systems.
  • In the printing industry to control hardness and as a stabilizer.

Other applications include: Agricultural Formulations, Bleaching (Pulp), Electronics/Se­miconductors, Electroplating, Photography, Textile Processing, Water Softening.

In Metalworking indutries it is used for surface preparation, metal cleaning, metal plating, and in metalworking fluids.

In Cleaning products EDTA is employed to remove hard water scale, soap film, and inorganic scales. It is commonly used in a wide variety of cleaning products and formulations, including hard surface cleaners, laundry detergents, bactericdal cleaners, vehicle washes etc.

Other key applications for EDTA Disodium include: In Photography as a bleach in photographic film processing. It controls the oxidation conditions of metal ions (Photography, sulphur removal from waste gases). In the manufacturing of paper to maximize bleaching efficiency during pulping, prevent brightness reversion, and protect bleach potency. In Scale removal and prevention - to clean calcium and other types of scale from boilers, evaporators, heat exchangers, filter cloths, and glass-lined kettles. Water treatment - to control water hardness and scale-forming calcium and magnesium ions and to prevent scale formation.

It is used in RO membrane cleaning.

Health & Safety

This product is not classified according to the EU regulations.


PLEASE NOTE: This product is not for human or animal consumption.

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