PRODUCTS

EDTA 4Na

EDTA 4Na is a white solid, very soluble in water and forming a basic solution.
Prepared from ethylenediamine, formaldehyde, and sodium cyanide in basic solution, or from ethylenediamine and sodium chloroacetate, EDTA 4Na is a strong complexing and chelating agent.
EDTA 4Na reacts with many metallic ions to form soluble chelates.

CAS:   64-02-8
MF:   C10H12N2Na4O8
MW:   380.17
EINECS:   200-573-9

Synonyms
ETHYLENEDIAMINETETRAACETIC ACID TETRASOD IUM SALT PURE;ETHYLENEDIAMINETETRAACETIC ACID TETRA-SO DIUM SALT TETRAH.;EDTA.Na4.2H2O;Ethylenediaminetetraaceticacid,tetrasodiumsaltdihydrate,99+%;Ethylenediamine-N,N,N',N'-tetraaceticacid,tetrasodiumsalt,tetrahydrate;ETHYLENEDIAMINETETRAACETICACIDTETRASODIUMSALT,REAGENT;ETHYLENEDINITRILOTETRACETICACIDTETRASODIUMSALT;ETHYLENE-DIAMINO-TETRA-ACETIC-ACID-TETRA-SODIUMSALT;Glycine,N,N′-1,2-ethanediylbis[N-(carboxymethyl)-,sodium salt (1:4);Acetic acid,(ethylenedinitrilo)tetra-,tetrasodium salt;Glycine,N,N′-1,2-ethanediylbis[N-(carboxymethyl)-,tetrasodium salt;Aquamollin;Calsol;Celon E;Celon H;Celon IS;Cheelox BF;Cheelox BR 33;Complexone;Conigon BC;Distol 8;Distol;Edathanil tetrasodium;EDTA tetrasodium salt;Endrate tetrasodium;Ethylenebis[iminodiacetic acid] tetrasodium salt;(Ethylenedinitrilo)tetraacetic acid tetrasodium salt;Irgalon;Kalex;Komplexon;Metaquest C;Nervanaid B;Nullapon;Nullapon BF 12;Nullapon BF 78;Nullapon BFC Conc;Nullapon BFC Conc Beads;Nullapon BFC liquid;Questex;Sequestrene 30A;Syntes 12a;Tetracemin;Tetrasodium ethylenediaminetetraacetate;Tetrasodium (ethylenedinitrilo)tetraacetate;TST;Tyclarosol;Versene 67;Versene 100;Versene Beads;Versene Powder;Warkeelate S 42;Warkeelate PS 42;Warkeelate PS 43;Warkeelate PS 47;Nervanaid B liquid;Ethylenediaminetetraacetic acid tetrasodium salt;N,N′-1,2-Ethanediylbis[N-(carboxymethyl)glycine] tetrasodium salt;Sodium edetate;Edetic acid tetrasodium salt;Tetracemate tetrasodium;Tetrasodium edetate;Nullapon BFC;Nullapon B;Edetate sodium;Chemcolox 200;Chemcolox 240 Powder;Hamp-ene Na4;Hamp-ene 100;Hamp-ene 215;Perma-Kleer Tetra CP;Versene Flake;Sequestrene Na4;Sequestrene ST;Chelon 100;Syntron B;Trilon B;Tetrasodium ethylenediamine-N,N,N′,N′-tetraacetate;Versene 220;Ergon;Aquamollin BC;Ergon B;8013-51-2;8023-21-0;50809-35-3;70699-53-5;97928-93-3

EDTA 4Na is incorporated in personal care products to chelate and sequester metal ions, in an effort to increase shelf life and enhance the products foaming properties.
EDTA 4Na is used in shampoo, dyes, lotion, gel, cosmetics.
EDTA 4Na has a pH higher than 7.
As such, EDTA 4Na is widely used in analysis to retain alkaline earths and heavy metals in solution and for dissolving scale.
EDTA 4Na is much more stable than many other organic stabilising agents like citric acid, tartaric acid and gluconates especially at elevated temperatures.
EDTA 4Na is stable at 200°C even under pressure.

EDTA 4Na is predominantly used in agriculture, water treatment, pulp and paper industries and also used in the manufacture of cleaners and detergents.
Chelating agents bind, sequester or capture trace amounts of iron, copper, manganese, calcium and other metals that occur naturally in many materials.
Such naturally occurring metals can cause chemical degradation, discoloration, scaling, instability, rancidity, ineffective cleaning performance and other problems.
In Metalworking industries EDTA 4Na is used for surface preparation, metal cleaning, metal plating, and in metalworking fluids.

In Cleaning products EDTA 4Na is employed to remove hard water scale, soap film, and inorganic scales.
EDTA 4Na is commonly used in a wide variety of cleaning products and formulations, including hard surface cleaners, laundry detergents, bactericidal cleaners, vehicle washes etc.
EDTA 4Na is used in soaps ,many hair products, creams and lotions.
In the textile industry, EDTA 4Na is employed to prevent metal ion impurities from changing colours of dyed products.
For chlorine-free bleaching EDTA 4Na inhibits the ability of metal ions, especially Mn2+, from catalysing the Hydrogen Peroxide.
In Photography, EDTA 4Na is used as bleach in photographic film processing.

Other key applications for EDTA 4Na include: In Photography as a bleach in photographic film processing.
EDTA 4Na 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.
In Water treatment - to control water hardness and scale-forming calcium and magnesium ions and to prevent scale formation.

Used therapeutically in treating arteriosclerosis.
Used as a metal cleaner; in detergents, liquid soaps; shampoos; metal chelating agent; in textiles industry to improve dyeing, scouring, and detergent operations; antioxidant.
EDTA 4Na is the salt resulting from the neutralization of ethylenediaminetetraacetic acid with four equivalents of sodium hydroxide (or an equivalent sodium base).
EDTA 4Na is a white solid that is highly soluble in water.
Commercial samples are often hydrated, e.g. Na4EDTA.4H2O.
The properties of solutions produced from the anhydrous and hydrated forms are the same, provided they are at the same pH.

EDTA 4Na is used as a source of the chelating agent EDTA4-.
A 1% aqueous solution has a pH of approximately 11.3.
When dissolved in neutral water, EDTA 4Na converts partially to H2EDTA2-. Ethylenediaminetetraacetic acid is produced commercially via the intermediacy of EDTA 4Na.
EDTA 4Na is also known as Dissolvine E-39.
EDTA 4Na is a salt of edetic acid.
EDTA 4Na has been known at least since 1954.
EDTA 4Na is sometimes used as a chelating agent.
The assignee on 5% of patents at the USPTO containing the substance is the firm Procter and Gamble.
EDTA 4Na is used most notably in cosmetics and hair and skin care products.
EDTA 4Na has been used to aid in formulation of a removal product for rust, corrosion, and scale from ferrous metal, copper, brass, and other surfaces.

At a concentration of 6%, EDTA 4Na is the main active ingredient in some types of engine coolant system flushes.
EDTA 4Na is the salt resulting from the neutralization of ethylenediaminetetraacetic acid with four equivalents of sodium hydroxide (or an equivalent sodium base).
EDTA 4Na is a white solid that is highly soluble in water.
Commercial samples are often hydrated, e.g. Na4EDTA.4H2O.
The properties of solutions produced from the anhydrous and hydrated forms are the same, provided they are at the same pH.

EDTA 4Na Chemical Properties
Melting point: >300 °C(lit.)
Density: Apparent density: 6.9 lb/gallon
Solubility: H2O: 0.1 g/mL, clear, colorless
Form: Crystalline Powder
Color: White
Stability: Stable. Incompatible with strong oxidizing agents.
InChI: InChI=1S/C10H16N2O8.4Na/c13-7(14)3-11(4-8(15)16)1-2-12(5-9(17)18)6-10(19)20;;;;/h1-6H2,(H,13,14)(H,15,16)(H,17,18)(H,19,20);;;;/q;4*+1/p-4
InChIKey: UEUXEKPTXMALOB-UHFFFAOYSA-J
LogP: -0.434 (est)
CAS DataBase Reference: 64-02-8(CAS DataBase Reference)
EPA Substance Registry System: EDTA 4Na (64-02-8)

EDTA 4Na melts at 240°C and above this it starts to lose water of crystallisation and at 300°C it decomposes.
EDTA 4Na is stable in both strong acids and bases.
EDTA 4Na is broken down by strong oxidising agents like chromic acid and potassium permanganate.
EDTA 4Na stabilises polyvalent metal ions allowing an increase in the rate at which metals dissolve.
When used in mildly alkaline cleaning solutions, metals are less likely to suffer from corrosion as compared to cleaning the metals with acids (with exception to aluminium).

EDTA 4Na can be used to stabilise phosphonates in alkaline and neutral de-rusting and descaling baths.
EDTA 4Na also prevents lime soaps from precipitating which prolongs the working life of baths.
EDTA 4Na, also known as ethylenediaminetetraacetic acid tetrasodium salt, is a white, crystalline powder composed of four sodium cations and the EDTA anion.
EDTA 4Na is highly soluble in water and forms stable complexes with metal ions, making it an effective chelating agent.
EDTA 4Na is known for its ability to bind metal ions, preventing them from interfering with product stability and performance.

Uses
Chelation: EDTA 4Na helps prevent the degradation of formulations by metal ions present in water and ingredients by chelating free ions: ensuring product longevity.
Industrial Applications: EDTA 4Na finds application in various industrial processes, including water treatment, textile dyeing, and metal plating, where it is used as a chelating agent to control metal ions and improve process efficiency.
Hobbyist Applications: Prevent rust in aqueous media.

Chemistry
In aqueous solutions, EDTA 4Na competes for metal ions with other anions such as hydroxide, sulphate, sulphide, carbonate and oxalate that form sparingly soluble metal salts.
The formation of chelates reduces the concentration of free metal ions to such an extent that the solubility products of many sparingly soluble metal salts are no longer exceeded.
The result is that the salts no longer precipitate or may even re-dissolve.