What is stearic acid and what are its uses
Published:
2021-05-29
Cata Chemical Technology
What is stearic acid for? Stearic acid is often used in the plastic processing industry, which can play a role as a heat stabilizing agent in environmental protection. Stearic acid is also widely used in the rubber industry as a film remover, plasticizer and softening and vulcanizing agent. In this cosmetics industry, stearic acid is used as viscosity regulator, stabilizer and sunscreen. In addition, it is used in textile, medicine, leather making and other industries.
Calcium stearate is a new type of plastic additive. Because of its own properties, it is used in many fields. What are the raw materials for synthesizing calcium chloride? The synthesis of calcium stearate is divided into wet method and dry method. The raw materials of different production processes are also different. The wet synthesis of calcium stearate includes double decomposition method and saponification method. The double decomposition method takes stearic acid as the main raw material, melts at appropriate temperature, reacts with sodium hydroxide solution, and then the generated sodium stearate and soluble calcium salt (such as calcium chloride) undergo double decomposition reaction to produce calcium stearate precipitation; Saponification method is that soluble calcium salt reacts with sodium hydroxide to produce calcium hydroxide, and then saponification with stearic acid to produce calcium stearate.
The dry method of stearic acid manufacturer is to directly react calcium oxide or calcium hydroxide with stearic acid under certain conditions to produce calcium stearate. At present, dry process is the mainstream process, which is environmentally friendly and convenient. Zinc stearate is commonly used in plastic processing industry. What is stearic acid used for? As an environment-friendly heat stabilizer, zinc stearate is not a dangerous product. This product is a white light powder with a specific gravity of 1.095. It is greasy, insoluble in water, and soluble in hot organic solvents such as ethanol, benzene, turpentine. In case of strong acid, it is decomposed into stearic acid and corresponding zinc salt. Zinc stearate has hygroscopicity.
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