Tetrasodium EDTA (EDTA-4Na)

EDTA-4Na – High Performance Alkaline Chelating Agent

Tetrasodium EDTA (EDTA-4Na) is the fully neutralized tetrasodium salt of EDTA with sodium hydroxide. It appears as a white crystalline powder, is readily soluble in water, and its aqueous solution is strongly alkaline. As a highly efficient metal ion chelator, it forms stable, water-soluble complexes with calcium, magnesium, copper, iron, lead, and other metal ions. It is widely used in household and industrial detergents, industrial cleaning, and water treatment.

Chelaat efficiënt calcium, magnesium en zware metalen
Prevents soap scum and equipment scaling
Enhances detergency and foamability
Stable and effective in alkaline systems
Verwijdert giftige zware metalen in afvalwaterbehandeling

Parameter	Specificatie
Content (as C₁₀H₁₂N₂O₈Na₄·4H₂O) %	99.50% Min.
Chloride (Cl-) %	0,01% Max.
Sulfaat (SO₄²-) %	0,05% Max.
Zware metalen (als Pb) %	0,001% Max.
IJzer (Fe) %	0,001% Max.
Chelatiewaarde (mgCaCO₃/g)	220 Min.
pH (1% solution, 25℃)	10.5 – 11.5
NTA-inhoud %	0,1% Max.
Uiterlijk	Wit kristallijn poeder

Productspecificaties (Dagelijkse Chemische Rang)

Key property: A 1% EDTA-4Na solution has a pH of 10.5–11.5 (strongly alkaline), making it especially suitable for alkaline detergents and cleaning systems.

Aanbevolen doseringsrichtlijnen

Opmerking: De werkelijke dosering moet worden geoptimaliseerd door laboratoriumtests op basis van de hardheid van het water, de concentratie zware metalen en de pH van de formulering.

Toepassing	Aanbevolen dosering	Functie
Wasmiddel / Afwasmiddel	0,5% - 2,0% van totale formulering	Chelatie van hard water, verbeterde detergentie
Industrial Alkaline Cleaner	1% – 5%	Water softening, soap scum prevention
Ketel / Circulerend Koelwater	10 – 100 ppm (continuous feed)	Schilfering, verzachting
Galvanisch afvalwater	1:1 - 3:1 molaire verhouding (gebaseerd op de concentratie van zware metalen)	Chelatie van koper, nikkel, lood, enz.
Printing & Dyeing Wastewater	0.1 – 0.5 g/L	Chelate metal ions, prevent dye precipitation

Request Your Free EDTA-4Na Sample

Experience the chelation performance of high-purity EDTA-4Na in your alkaline system firsthand.

At Tenessy, experience our EDTA-4Na product firsthand with a FREE sample!
- Steekproefgrootte: 25 kg of 50 kg.
- Verzending: Snel via FedEx of DHL.
- Service: Deskundige ondersteuning bij het aanpassen van formules.

Why Choose EDTA-4Na?

Performs Excellently in Strongly Alkaline Systems

Unlike EDTA-2Na, EDTA-4Na achieves maximum chelation efficiency at pH 10.5–11.5, making it ideal for laundry liquids, dishwashing detergents, and alkaline cleaners.

Extremely High Water Solubility & Dissolution Rate

EDTA-4Na has much higher water solubility than EDTA-2Na and dissolves quickly at room temperature, facilitating production batching and on-site use.

Highly Effective Chelation of Calcium, Magnesium & Heavy Metals

Each gram of EDTA-4Na chelates ≥220 mg CaCO₃ equivalent of hardness ions while effectively binding copper, iron, lead, and other heavy metals to prevent metal-catalyzed oxidation.

Voorkomt zeepaanslag en aanslag op apparatuur

In hard water conditions, EDTA-4Na preferentially binds with calcium and magnesium, preventing anionic surfactants from forming insoluble soap scum while protecting pipes, boilers, and heat exchangers from scale buildup.

EDTA-4Na vs. EDTA-2Na: Key Differences

Vergelijking	EDTA-4Na (Tetranatrium)	EDTA-2Na (Dinatrium)
pH (1% oplossing)	Sterk alkalisch (10,5-11,5)	Weakly acidic / Near neutral (5–6)
Oplosbaarheid in water	Extremely high, fast dissolution	Good, slightly lower than EDTA-4Na
Optimale chelatie-efficiëntie	Alkalische omgevingen	Neutrale / zwak zure omgevingen
Geschikte toepassingen	Alkaline formulations, high hardness water, high heavy metal content	Neutral / weakly acidic formulations (daily chemicals, food, pharmaceuticals)
Chelatie-eigenschappen	Sterk, chelaat snel Ca/Mg en meerdere zware metalen	Mild and stable, suitable for standard formulations

Belangrijkste toepassingsgebieden

EDTA-4Na is widely used as a high-performance chelating agent and water softener across daily chemicals, industrial cleaning, and water treatment industries.

Daily Chemicals (Alkaline Detergents)

Laundry Liquid, Dish Soap, Industrial Cleaners

Acts as a detergent builder and water softener, chelating calcium and magnesium ions in hard water
Improves detergency and foamability
Prevents soap scum formation and avoids oxidation of active ingredients

Alkaline Personal Care Products

Used as a stabilizer in some alkaline facial cleansers and body washes
Chelates metal ions to extend product shelf life

Industrial Cleaning & Water Treatment

Hard Water Softening & Scale Inhibition

Effective water softener for boilers, circulating cooling water, and heat exchangers
Chelates calcium and magnesium ions to prevent new scale formation
Can dissolve some existing scale and inhibit corrosion

Behandeling van afvalwater

Electroplating wastewater, printing & dyeing wastewater, mining wastewater
Chelates heavy metals such as copper (Cu²⁺), nickel (Ni²⁺), lead (Pb²⁺), and zinc (Zn²⁺)
Vermindert de toxiciteit van zware metalen voor latere neerslag of terugwinning

EDTA-4Na Packaging & Storage

Wij bieden flexibele verpakkingsoplossingen die voldoen aan de uiteenlopende behoeften van onze klanten.

25 kg zak

Standaard poederverpakking met vochtbestendige functie om de stabiliteit van het product tijdens transport en opslag te garanderen.

Aangepaste verpakking

TENESSY kan ook verpakkingsdiensten op maat leveren, waaronder jumbozakken, papieren zakken of OEM-zakken met een merknaam.

FAQ

Q1: Can EDTA-4Na and EDTA-2Na be used interchangeably?

Directe vervanging wordt niet aanbevolen. Hun pH-waarden verschillen aanzienlijk, wat de pH van de uiteindelijke formulering zou veranderen en de chelatie-efficiëntie en stabiliteit van het systeem zou beïnvloeden. Als vervanging nodig is, herformuleer dan de pH en andere componenten dienovereenkomstig.

Q2: Does EDTA-4Na contain phosphorus?

No. For regions with phosphate bans or environmentally sensitive detergent formulations, EDTA-4Na can be used as a phosphorus-free chelating agent.

Q3: Is EDTA-4Na degraded in wastewater?

EDTA compounds biodegrade slowly in natural environments. Some wastewater treatment plants effectively remove them using advanced oxidation processes (e.g., ozone, UV/H₂O₂). Compliance with local environmental discharge regulations is recommended.