Calcium Stearate, which is known to be physiologically safe, has recently become increasingly important. It is used in food additives and cosmetics due to its harmlessness. Calcium stearate is an excellent solid lubricant used in injection and extrusion processes. the pharmaceutical and cosmetic industries use calcium stearate as an anti-caking additive for powders and granules and as an additive for compressing tablets. In the construction industry, it is used as a hydrophobic agent to prevent moisture absorption and protect building and building materials. As the main raw material, it is commonly used together with other stearate salts such as zinc stearate, barium, etc. to stabilize PVC. In the rubber industry, it is used as a lubricant and release agent and softener. In paper making, it improves the printing capability and flexibility of paper and cardboard and prevent cracking and brittleness, thus increasing their life.