White powder, insoluble in water, cold ethanol and ether, dissolved in hot benzene, benzene and turpentine and other organic solvents, slightly soluble in hot ethanol and ether. When heated to 400 ℃ slowly decomposed, flammable, in case of decomposition of stearic acid and corresponding calcium, hygroscopic.

Basic Information:
    Chinese name: calcium stearate
    English name: Calcium stearate
    Chinese alias: eighteen calcium; eighteen calcium salt; calcium stearate dispersions; calcium stearate; calcium stearate; SCD lubricant; eighteen calcium (light)
    English alias: calcium distearate, pure; Calcium Stearate (Light); Calciumstearatetech; Calciumstearatemin; STEARIC ACID CALCIUM SALT; OCTADECANOIC ACID CALCIUM SALT; CALCIUM OCTADECANOATE; aquacal; calciumdistearate; calstar; dibasiccalciumstearate; calcium dioctadecanoate; (octadecanoato-kappaO) calcium (1 +).

Molecular formula	C18H35CaO2
Molecular weight	323.5468
CAS No	1592-23-0
EINECS No	216-472-8

Property:

    Calcium stearate appearance of fine white, fluffy powder, creamy feel, soluble in water, toluene, ethanol and other organic solvents. Non-toxic, heated to 400 degrees Celsius slowly decomposed into stearic acid and corresponding calcium salt.

Applications:

    1. used as a non-toxic PVC heat stabilizers, and has excellent lubricity. Thermal stability as effective as barium stearate, lead stearate, tin stearate and cadmium stearate. But cheap, low toxicity, good processing performance. Zinc soap and an epoxy compound with a synergistic effect, can improve the thermal stability. Commonly used in non-toxic food packaging films, medical devices and other requirements of soft products. And the base of lead and lead salts and soaps used for hard products, can increase the gelation speed. This product is used polyethylene and polypropylene, it can eliminate the adverse effects of residual catalyst on the resin color and stability. This product is also widely used as polyolefin, polyester reinforced plastics, phenolic resin, amino resin and other thermosetting plastics lubricant and release agent. The disadvantage of this product is the initial coloring, at least 100 ℃ heating time is longer, will become reddish white PVC, especially when there is the presence of titanium dioxide, coloring is particularly serious in the formulation. The large amount of goods, there is segregation fouling. 

    2. used as a lubricating agent Stuck in oil field operations. Also used as a heat stabilizer and a variety of plastics processing PVC lubricants, mold release agents and the like. In hard products, and the base of the lead salt, lead with soap can increase the gelation speed. Also used in food packaging, medical devices and other requirements of non-toxic soft film and equipment. It can be made of polyethylene, polypropylene, halogen absorbent to remove residual catalyst on the adverse effects of color and stability. As plasticizers in rubber processing, make the natural rubber and synthetic rubber to soften, but almost no effect on the curing. Also used as grease thickening agent, textile waterproofing agents, paint the plain agent, when manufacturing plastic LP plasticizers. 

    3. Calcium stearate is a good non-toxic heat stabilizers and lubricants, but also adhesives, paint plain agent and waterproofing agent in the plastics and rubber chemical production process widely used. Thermal stability as effective as barium stearate, lead stearate, tin stearate and cadmium stearate. But cheap, low toxicity, good processing performance. Zinc soap and an epoxy compound with a synergistic effect, can improve the thermal stability. Commonly used in non-toxic food packaging films, medical devices and other requirements of soft products. Also widely used as the polyolefin, polyester reinforced plastics, phenolic resins, amino resins and other thermosetting plastics lubricant and release agent.