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The Most Complete Use of Sodium Stearate

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Update time : 2019-10-10 14:45:54

Sodium stearate is a fine white powder or a lumpy solid with a slippery feel, a fatty taste, and water absorption in the air. The aqueous solution is alkaline due to hydrolysis, and the alcohol solution is neutral. It is prepared by the interaction of stearic acid and sodium hydroxide. It is widely used in the manufacture of cosmetics, detergents, and lubricants. It is commonly used in the production of food, ceramics, pharmaceuticals, paper, rubber, glass, fuel, ink, etc. and also used as a waterproofing agent, plastic stabilizer, and adhesive. This article has compiled a large number of uses of hard sodium acid in various industries.
 

 
 

Cosmetics

 

Stearic acid is widely quoted in cosmetics and usually used as an emulsifier and thickener. However, these cosmetics are very sensitive to certain substances that reduce the effectiveness of sodium stearates, such as acids, electrolytes, and cationic surfactants. A mixture of sodium stearate soap and stearic acid glycerin can be used as an emulsifier for cosmetics and pharmaceuticals, and by testing its effects, it has been found that a component of the mixture alone is not obtained. Sodium stearate has a protective effect on the skin and can be used in some skin ointments to prevent the solvent component of the cream from damaging the skin. Among emulsifying perfumes and pasty hair dyes, sodium stearate can be used as an emulsifier. Sodium stearate soap and polylactic acid, vinyl vinegar plus dyes and pigments can be used to make lipsticks and eye shadow pens. Sodium stearate can be used as a thickener and opacifier in shampoos. Sodium stearate-based stick cosmetics, including robust flavors (long sticks) and antiperspirant creams used in summer, mainly made of stearic acid soap plus ethanol, taste, and deodorant. Sodium stearate cream is not greasy; its film on the skin is not oily, so it is the basis of many cream products; it will not produce oily luster on the surface.
 

 
 

Detergent

 

Sodium stearate is the primary raw material for making soaps and is also suitable for the preparation of low foaming or non-foaming detergents ideal for use in washing machines. It can also be used to make water, ethanol, isopropanol, mixtures of silicones and soaps, and gel products for cleaning smooth surfaces. Stearic acid can also be used to make cleaning agents that are pyrolyzed from a variety of surfaces. Sodium stearate can also be used in preservative and bleaching detergents.
 

 
 

Lubricant

 

Sodium stearate has many uses in the manufacture of lubricating oils and greases, such as the preparation of lubricants for cold metal forming. Sodium stearate can be added to make lubricants suitable for temperatures up to 750 °C. Sodium stearate can also be used to prepare low-flame point hydraulic oils and lubricating oils having a useful viscosity index. Sodium stearate can be used together with a copolymer of acrylamide and sodium acrylate to stabilize the cutting fluid of the metal. The addition of sodium stearate also reduces the fluid resistance and initial shear stress of the drilling mud. Sodium stearate can be used as a lubricant in the cold pressing of aluminum and aluminum alloys. A mixed oil containing sodium stearate is applied to the surface of the steel to facilitate extrusion and drawing of the material. It is common practice to apply zinc phosphate to the surface of the metal before it is immersed in an aqueous solution of sodium stearate and sulfonated tallow. When steel is extruded in an environment of 900 ° C to 1150 ° C, the traditional practice is to use a glass wool or fiberglass liner as a lubricant between the billet and the mold, if sodium stearate is used as a foaming agent, and glass wool As a liner, the adhesion of the glass wool on the surface of the formed metal product is significantly reduced. Sodium stearate can create a dry film lubricant with lead disulfide. This lubricant can work more effectively under high-pressure conditions. At the same time, this dry film lubricant is waterproof and easy to use. Mixing sodium stearate, aluminum stearate, and magnesium stearate can produce oils for roller bearings and ball bearings. The composition of the lubricant is hard sodium acid 10%, aluminum stearate 40%, calcium stearate 10%, zinc oxide 15%, talc 5%, mineral oil 10%. Sodium stearate can also be used as a lubricant for the drawing and pressing of wires and is particularly useful in the dry picture of ferrous wires.
 

 
 

Food

 

Sodium stearate can be used in the processing of pastry cakes in the bakery. The food is brighter in color and more crispy in taste. Sodium stearate can also be used as an excipient for the production of fat-free, starch-free, low-glucose corn syrup, as well as a base for the production of chewing gum.
 

 
 

Ceramic products

 

Mixing sodium stearate, phosphoric acid, sand, and chrome, and magnesia can produce a ceramic glaze with stable rheology. The coating of this ceramic glaze has a lower firing temperature and a thinner thickness, which can be fired — beautiful, lightweight ceramic products. Sodium stearate can also increase the mechanical strength of ordinary fineness cement. Sodium stearate may also be added to some of the stomata, slow-hardening cement inner and outer wall linings.
 

 
 

Pharmaceutical

 

Sodium stearate can act as an emulsifier in aqueous emulsions, such as in the preparation of glycerin, olive oil emulsions. Sodium sulfate can also be used to produce stable, high liquefaction temperature castor oil gels that have a significant effect on some skin conditions and that cause dermatitis caused by industrial enzymes and certain chemicals. It has an excellent protective effect. Sodium stearate can also be used to prepare glycerol suppositories, as well as to make sterilized tablets for use in food processing equipment that control solubility. Sodium stearate can also be used in toothpaste and can also be used to treat topical sores and other skin conditions. Sodium stearate can also be used as a dry lubricant in tablet forming.
 

 
 

Polymer

 

Sodium stearate has many applications in the production and processing of polymers and copolymers. Ethyl acrylate and methyl acrylate copolymers in low molecular weight vinegar, ketone and alcohol solutions, when used in combination with sodium stearate, prevent their tendency to flow and make them vicious. The indoleamine is copolymerized with an organic isocyanate in the presence of sodium stearate to form a polyimide foam. The addition of sodium stearate improves the compressive strength and separability of the polyether vinegar mold. Sodium stearate can be used to produce anti-static polyethylene. It can also be used as a dispersing agent for polyethylene and ethylene acetic acid in water. Polyethylene containing a large amount of catalyst residue can be stabilized by a non-corrosive stabilizer containing sodium stearate as an active ingredient to prevent degradation caused by ultraviolet rays. Sodium stearate can also be used to remove catalysts from polymers and can also be used to make fire-resistant ethylene, propylene agglomerates. Sodium stearate is also useful in the preparation of microporous polypropylene filaments. Doping sodium stearate soap can produce polyvinyl acetate vinegar particles which prevent agglomeration. Sodium stearate can also be used as a component of antioxidants to stabilize the polyisobutylene oxide shape. Sodium stearate has been used as a component of non-toxic stabilizers for polyvinyl chloride. The polyvinyl chloride filler with sodium stearate has a function of stabilizing the quality and improving the performance. In the preparation of lead compounds, sodium stearate is also used as a stabilizer. Sodium stearate can be used to prepare a foamed, flowable polyvinyl chloride powder to make a polyvinyl chloride emulsion having a particle size of 0.1-minute micrometer and which can be used for a plastisol. Sodium stearate can also be used to improve the heat sealability of polyvinyl chloride tubular sheets. Polyvinyl formal and polyvinyl butyral can be dissolved in a concentrated solution of sodium stearate without degradation, and dilution of the solution does not precipitate the polymer. The kinetics of isothermal batch polymerization of styrene into polystyrene aqueous emulsion was studied using sodium stearate as an emulsifier. The blend of polystyrene and sodium stearate is extruded through a nozzle and then washed with hot water to remove the soap from the rod to produce the fiber. This method is also suitable for making foamed polyethylene. Non-flying pigments for thermoplastics are made from sodium stearate and insoluble pigments. Sodium stearate soap can also be used as a coating for highly transparent calcium carbonate fillers, and as a sufficient antifreeze for cellulose acetate butyrate plastic products. Sodium stearate can also react with calcium chloride and zinc chloride in the presence of stearyl alcohol to form a dense metal soap with good breaking strength. It can be used as a lubricant and stabilizer in polymers. It can be prepared by a continuous process.
 

 

Rubber

 

Sodium stearate can be used as an aid in the vulcanization of propylene rubber and elastomers containing active halogens and sulfur. Butadiene and isoprene can be polymerized in a hydrocarbon solvent using sodium stearate as a catalyst. Sodium stearate can also be used as a crosslinking agent in a butene rubber. Among the anti-collision graft copolymers for producing butadiene latex, styrene, and propylene wax, sodium stearate is used as an adjuvant. The addition of caustic soda and a wetting agent to the sodium stearate solution containing zinc sulfate can be used to prevent the agglomeration of the isobutylene rubber particles. Sodium stearate can also be used in the formulation of fluoro rubbers to provide good release properties. The polychloroprene rubber obtained in the emulsion containing the resin soap can be mixed with sodium stearate to improve the rolling quality remarkably. Sodium stearate can also be used to improve the vulcanization of polychloroprene rubber, and it can also be used as a transparent product in a mixture of polyester rubber. Sodium stearate can improve the effect of preventing premature vulcanization of some rubber. Among carbonates and sulfates, sodium stearate is an effective dispersant for carbonates and sulfates.
 

 
 

Paper

 

Paper has now been produced by a method in which cellulose fibers are partially acetified by mixing sodium stearate, aluminum chloride, and a cationic thermosetting polyamine. Sodium stearate can also act as a lubricant in the preparation of fillers for the cellulose used in papermaking. Sodium stearate is used together with sodium gluconate for the internal gum of paper. In order to increase the amount of starch in a certain sizing paper, various starch and sodium stearate compounds were tested and coagulated with aluminum stearate.

 

 
 

Fuel

 

Sodium stearate, together with polyethylene glycol, hexamethylenetetramine, and methanol, can be used as a solid fuel to improve flammability and combustion and to have no bad odor when burned. Sodium stearate, monoethanolamine, lauryl methacrylate, and methanol can be made into a fuel similar to that described above, which contains an amine that prevents the formation of formaldehyde upon combustion. Sodium stearate can also be used to make organic liquid gels that are used as aircraft fuels to reduce the risk of fire. Sodium stearate can also be used as a preservative additive for fuel oils as a dispersant for aqueous magnesium hydroxide suspensions.

 

 
 

Glass

 

A glass shock-proof coating for keeping glass cullet for one day or two days can be made with ethylene, methacrylic acid polymer sodium salt, and sodium stearate. Sodium stearate can also be used to prepare glass electrodes for determining ion concentrations.

 

 
 

Ink

 

Sodium stearate can be used as a lipophilic agent for the production of flat metal printing plates. Sodium stearate is prepared together with a stilbene or the like to remove a stain of ink such as a raw ball oil.
 

 
 

Polishing agent

 

Heating sodium stearate with trimethyl-sec-tridecyl chlorohydrin can obtain a waxy product that can be used in a wax emulsion and has a melting point of 63-64 °C. Sodium stearate can also be used in die-cast zinc drums to produce gloss.

 

 
 

Other uses of sodium stearate

 

Sodium stearate is used in the catalyst system in the cyclopentene reaction for producing urea. It is used as an emulsifier in the purification of fatty acid vinegar and para-isopropyl phenol in hot water. Sodium stearate can also be used to prevent auto-oxidation of sulfide ore during flotation. Sodium stearate is used together with polystyrene for the solidification of charged powder deposits after waste incineration. Sodium stearate can be used to stabilize isobutyraldehyde to prevent the formation of terpolymers and as an adjunct for the production of vanadium-free tetrachloride.