Sodium Edetate丨CAS 64-02-8

Sodium edetate丨CAS 64-02-8, also known as EDTA disodium salt, is a water-soluble compound widely used as a chelating agent. It has the molecular formula C10H14N2Na2O8 and is a white, crystalline powder. Sodium edetate is known for its ability to bind metal ions, making it useful in a range of applications across various industries, from medicine to food processing and environmental management.

1. Pharmaceutical and Medical Applications

Sodium edetate is commonly used in medicine as a chelating agent in the treatment of heavy metal poisoning, such as lead, mercury, and arsenic poisoning. It works by forming complexes with the toxic metals, which are then excreted through the urine. Specific applications include:

Lead poisoning treatment: It is used in cases of lead toxicity to reduce the concentration of lead in the body.

Treatment of other toxic metal overdoses: Helps to remove other harmful metals from the body in cases of poisoning.

2. Food and Beverage Industry

In the food industry, sodium edetate serves as a preservative and chelating agent to extend the shelf life of products by:

Preventing oxidation: By binding to metal ions, it prevents the degradation of fats and oils in food, helping to preserve color and flavor.

Enhancing the stability of food colorants and additives.

It is commonly used in canned foods, fruit juices, and cheese products.

3. Cosmetic and Personal Care Products

Sodium edetate丨CAS 64-02-8 is found in cosmetics and personal care products to:

Stabilize formulations: It helps to bind metal ions that can destabilize cosmetic formulas or cause discoloration.

Improve the efficacy of active ingredients by enhancing their absorption and stability.

It is commonly used in shampoos, conditioners, skin care products, and antiperspirants.

4. Industrial Applications

Sodium edetate is widely used in various industrial processes, including:

Water treatment: In industrial water systems, it helps to prevent scaling and precipitation of metal ions.

Cleaning agents: It is used in detergents and cleaning products, particularly for removing hard water stains, and in processes that involve metalworking fluids, where it helps prevent corrosion.

Pulp and paper industry: Helps in bleaching processes and prevents discoloration caused by metal ions.

5. Agriculture

In agriculture, sodium edetate is utilized to improve nutrient availability in soils by preventing the precipitation of essential metal ions, particularly those used by plants for growth, such as:

Iron: Ensures that iron is available in soil for plant uptake, particularly in hydroponic systems and soil-less cultivation.

6. Laboratory and Analytical Applications

Sodium edetate is often used in analytical chemistry for the quantitative determination of metals and in titration processes as a complexing agent. It is commonly used in:

Metal ion analysis

Chelation of metal ions in various experiments

1. Effective Chelating Agent

Sodium edetate丨CAS 64-02-8 is highly effective at binding with metal ions such as calcium, magnesium, iron, and lead, preventing these metals from causing unwanted reactions or disruptions in various chemical processes.

2. Versatility Across Industries

Its applications in diverse fields-medicine, food, cosmetics, industrial cleaning, and agriculture-make sodium edetate a versatile and valuable compound for multiple industries.

3. Enhancement of Product Stability

By preventing metal-catalyzed degradation, sodium edetate significantly improves the shelf life and stability of products, especially in food and cosmetic formulations.

4. Safety in Use

Sodium edetate is generally recognized as safe (GRAS) in food and cosmetic applications when used according to regulatory guidelines, making it suitable for wide-scale commercial use.