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Molecular formula : C36H70CaO4
MW : 607.00
CAS No. :1592-23-0
nature : the white granular powder or fatty. 179-180 ° C melting point. Soluble in hot pyridine, alcohol-soluble heat, heat the vegetable oil and mineral oil, almost insoluble in water, ether, chloroform, acetone and cold alcohol. Case of acid or alkali break down. The air is hygroscopicity.
preparation methods : first, the melting of stearic acid reaction with sodium hydroxide solution, dilute soap made further reaction with calcium chloride, calcium stearate generation crude and then washed off water, drying derived products. Kg / 920 tons of stearic acid sodium hydroxide (Pack 100%) 140 Calcium Chloride (Pack 100%) 400
purposes : for PVC stabilizers and lubricants, do non-toxic food packaging, medical equipment and other soft film containers. The polyethylene, polypropylene absorbent as halogen and eliminate residual resin catalyst for molding resin colors and the lubricant products, but also for phenolic, such as amino thermosetting plastic and polyester reinforced plastics Release Agent of the lubricant, grease the thickening agent, textile waterproofing agent and the paint PHOTODECOMPOSITION agents. Food-grade calcium stearate for resistance to drugs, to prevent powdered or crystallized form of food gathering, agglomeration, in order to maintain its freedom of movement. But China's GB2760-86 allows the use of anti Agents currently only a potassium ferrocyanide for salt, according to FAO / WHO, calcium stearate can be used for powder coating using glucose, sucrose and soup powder, the maximum permitted amount of 15 g / kg.
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