Description

Quaternium-18/Benzalkonium Bentonite is a compound combining a quaternary ammonium compound with bentonite and benzalkonium chloride. This ingredient is primarily used in cosmetic and pharmaceutical formulations for its conditioning, antistatic, and texture-enhancing properties. It is known for its ability to stabilize and improve the texture of products, as well as its antiseptic properties.

Chemical Composition and Structure

Chemical Composition: The compound consists of a quaternary ammonium compound (Quaternium-18), bentonite (a clay that absorbs water and oil), and benzalkonium chloride (an antiseptic and preservative agent). Quaternium-18 is a quaternary ammonium derivative with four alkyl groups attached to a positively charged nitrogen atom, while benzalkonium chloride is a quaternary ammonium salt with antiseptic properties.

Structure: The structure features a quaternary ammonium cation associated with bentonite, which is a type of clay, and benzalkonium chloride. This blend provides synergistic effects of conditioning and stabilization.

Physical Properties

Appearance: It appears as a fine powder or granular compound that can be dispersed in water.
Solubility: Partially soluble in water, particularly when combined with other ingredients to form a solution or paste.
pH: Compatible with a broad pH range, making it suitable for various types of formulations.

Production Process

Quaternary Ammonium Synthesis: The synthesis of Quaternium-18 involves the quaternization of a tertiary amine with an alkyl halide.
Combination with Bentonite: Bentonite is mixed with the quaternary ammonium compound to achieve a uniform blend.
Integration of Benzalkonium Chloride: Benzalkonium chloride is added to the mixture to provide its antiseptic properties.
Purification and Processing: The mixture is purified and processed to achieve the desired purity and ensure compatibility with other chemicals.
Formulation: The final compound is incorporated into cosmetic or pharmaceutical formulations.

Applications

Medical: Used in some pharmaceutical formulations for its antiseptic and stabilizing properties.
Cosmetics: Employed in hair and skin care products to enhance texture, provide conditioning effects, and act as a stabilizing agent.
Food: Not used in food products.

Environmental and Safety Considerations

Generally regarded as safe for topical use. However, like all compounds, it should be used according to established guidelines to avoid potential allergic reactions or skin irritations. Individuals with sensitive skin or allergies should exercise caution. It is important to ensure that the compound is sustainably sourced and free from harmful chemicals.

INCI Functions:


Surfactant - Foam booster. It has the effect of introducing gas bubbles into the water and affects the cleaning process by helping to spread the cleanser. Since sebum has an inhibiting effect on the bubble, more foam is produced in the second shampoo.
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