Pentasodium Pentetate is a sodium salt of a chelating acid, also known as sodium pentetate. It is primarily used as a chelating agent in cosmetics and personal care products. Its main role is to bind metal ions, preventing them from interacting with other ingredients, thereby enhancing the stability and efficacy of products.

Chemical Composition and Structure

Components: Pentasodium pentetate consists of sodium (Na) and a chelating compound derived from ethylenediaminetetraacetic acid (EDTA).
Chemical Formula: Na₅C₁₀H₁₂N₅O₁₄.
Molecular Weight: Approximately 447.27 g/mol.

Physical Properties

Appearance: Typically appears as a white, crystalline powder.
Odor: Generally odorless.
Solubility: Soluble in water.
pH: Typical solutions are neutral or slightly alkaline.
Stability: Stable under normal storage conditions; should be kept in a cool, dry place.

Production Process

Synthesis: Pentasodium pentetate is produced by reacting pentetic acid with a sodium base.
Purification: The product is purified to remove impurities and ensure high quality.
Formulation: Incorporated into cosmetic products as a chelating agent to enhance stability and performance.

Applications

Cosmetics: Used in creams, lotions, and serums to bind metal ions and prevent their interaction with other ingredients, helping to maintain product stability and efficacy.
Personal Care Products: Employed in shampoos, cleansers, and other products to improve stability and longevity.
Pharmaceuticals: Occasionally used in pharmaceutical formulations as a chelating agent.
Food: Not commonly used in food applications, mainly confined to cosmetic and pharmaceutical sectors.

Environmental and Safety Considerations

Pentasodium pentetate is generally regarded as safe for use in cosmetics and personal care products when used according to established guidelines. It should be handled and stored properly to maintain its efficacy and minimize any potential environmental impact. Adherence to safety recommendations is important to avoid any adverse effects.

Cosmetic safety

Restricted cosmetic ingredient as II/1721 a Relevant Item in the Annexes of the European Cosmetics Regulation 1223/2009.

INCI Functions:


Chelating agent. It has the function of preventing unstable reactions and improving the bioavailability of chemical components within a product, and removes calcium and magnesium cations that can cause cloudiness in clear liquids.
Synonyms:

CAS: 140-01-2 EC number 205-391-3