Zinc Stearate, a compound frequently employed across a wide spectrum of manufacturing processes, possesses a unique set of chemical and physical properties that make it indispensable. From its role as a lubricant in plastics to its function as a stabilizer and dispersing agent, a comprehensive understanding of this chemical auxiliary is vital for industry professionals. As a specialist in chemical raw materials, we provide this detailed exploration of Zinc Stearate, highlighting its core attributes and diverse applications, along with guidance on how to procure high-quality material.

Chemically, Zinc Stearate is the zinc salt of stearic acid, with the molecular formula Zn(C17H35COO)2 and CAS number 557-05-1. It typically presents as a fine, white, insoluble powder. Its insolubility in water and polar solvents like ethanol and ether contrasts with its solubility in hot organic solvents and acids, where it may decompose. A key physical characteristic is its high melting point, generally between 118-125 °C, indicating its stability under moderate heat. Its hydrophobic nature and low electrolyte content contribute to its effectiveness in various applications where moisture resistance and non-stick properties are desired.

The applications of Zinc Stearate are remarkably diverse. In the plastics industry, it serves as a lubricant and mold release agent, facilitating the smooth ejection of molded parts and preventing adhesion to processing equipment. It is also utilized as a stabilizer, particularly in PVC formulations, to enhance resistance to heat and light. The rubber industry benefits from its use as an anti-adhesion agent and a vulcanization activator, improving both processing and the final product's mechanical strength. Furthermore, in the paints and coatings sector, Zinc Stearate acts as a sanding agent, lubricant, and dispersant, contributing to improved surface finish and pigment dispersion in high-grade inks and wood paints.

For professionals seeking to buy high purity Zinc Stearate powder, identifying a reliable manufacturer is crucial. We recommend sourcing from established suppliers who can provide detailed technical specifications and assurance of consistent quality. A reputable Zinc Stearate supplier will offer competitive prices and reliable delivery, ensuring your manufacturing processes run smoothly. Whether your need is for plastics, rubber, inks, or other specialized industrial applications, understanding the detailed properties of Zinc Stearate and partnering with a trusted B2B chemical provider will ensure optimal results and efficient operations.