Quaternium-18 Bentonite is a blend of a quaternary ammonium compound (Quaternium-18) and bentonite, a type of clay with absorbent properties. This ingredient is primarily used in cosmetic products for its conditioning and thickening properties. Bentonite provides a thicker consistency and improves application, while Quaternium-18 acts as a conditioning and antistatic agent.

Chemical Composition and Structure

Chemical Composition: Quaternium-18 Bentonite consists of Quaternium-18, a quaternary ammonium compound, and bentonite, a natural clay primarily composed of montmorillonite.

Structure: The chemical structure of Quaternium-18 includes a quaternary nitrogen atom bonded to four alkyl groups. Bentonite is composed of layers of aluminum and magnesium silicate, which provide its ability to absorb moisture and oil.

Physical Properties

Appearance: It is a fine powder with a beige or light brown color, depending on formulation and refinement level.
Solubility: Bentonite is insoluble in water but disperses to form a suspension. Quaternium-18 is soluble in water, contributing to better dispersion in the formulation.
pH: Compatible with a wide pH range, making it suitable for various cosmetic formulations.

Production Process

The production of Quaternium-18 Bentonite involves the following steps:

Preparation of Quaternium-18: Quaternium-18 is synthesized by quaternizing a tertiary amine with an alkyl halide or similar reagent.
Processing of Bentonite: Bentonite is treated to remove impurities and achieve a fine consistency.
Combination: Quaternium-18 and bentonite are mixed in specific proportions to obtain a homogeneous powder.
Formulation: The blend is incorporated into cosmetic products during the manufacturing process.

Applications

Medical: Not typically used in medical applications.
Cosmetic: Used in hair and skin care products, including shampoos, conditioners, masks, and facial treatments. It enhances product consistency and provides conditioning and antistatic effects.
Food: Not used in food products.

Environmental and Safety Considerations

Generally regarded as safe for topical application. However, like all chemicals, it should be used in accordance with 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 produced 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.
Synonyms:

CAS: 68953-58-2 1340-69-8 EC number 273-219-4