Zinc Stearate CAS 557-05-1

INCI Name:Zinc Stearate

BLIT Chemical Zinc Stearate is White powder or particles, In soluble in water, ethyl alcohol, and ether; slightly soluble in benzene; it will decompose into stearic acid and its corresponding zinc salt when meeting strong acid.

Zinc Stearate is a zinc salt of stearic acid, commonly used in a variety of industries due to its multifunctional properties. It is known for its lubricating, hydrophobic, and stabilizing qualities, which make it a popular choice in cosmetics, plastics, rubber, and pharmaceutical formulations. In cosmetics, Zinc Stearate acts as a thickening agent and texture enhancer, providing a smooth, matte finish to powders and creams.

Cosmetic Formulations: In powder products like face powders and blushes, use Zinc Stearate at concentrations between 3% to 10% to enhance texture, spreadability, and adherence. For creams and lotions, add 1% to 3% to improve the product’s glide and provide a smooth, matte finish.

Plastics Manufacturing: Incorporate Zinc Stearate at 0.1% to 1% as a heat stabilizer and release agent in PVC and other plastic compounds. This prevents sticking during molding and extrusion and improves the processability and finish of the final product.

Rubber Processing: Use Zinc Stearate at 1% to 5% in rubber formulations to act as a mold release agent and process aid. It helps reduce sticking to molds, enhances the flow properties of the rubber compound, and supports uniform vulcanization.

Pharmaceutical Applications: In tablet manufacturing, use Zinc Stearate as a glidant at 0.25% to 1% to improve powder flowability and prevent clumping, ensuring uniform tablet size and weight.

Handling and Safety: Always use Zinc Stearate in a well-ventilated area and wear appropriate personal protective equipment, such as gloves and masks, to minimize inhalation and skin contact. Store it in a cool, dry place, away from moisture and direct heat, to maintain its quality and effectiveness over time.