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SODIUM STEARATE

Synonyms: Sodium octadecanoate, Octadecanoic acid sodium salt, Stearic acid sodium salt, CH3(CH2)16COONa, Sodium monostearate; SODIUM STEARATE ; SODYUM STEARAT; Stéarate de sodium

Sodium stearate is the sodium salt of stearic acid. This white solid is the most common soap. It is found in many types of solid deodorants, rubbers, latex paints, and inks. It is also a component of some food additives and food flavorings.

Synonyms:
Sodium octadecanoate, Octadecanoic acid sodium salt, Stearic acid sodium salt, CH3(CH2)16COONa, Sodium monostearate; sodıum stearate; sodyum stearat; sodyum stearate; sodyum stearat; sodıum stearate; SODIUM STEARATE; Sodium octadecanoate; Octadecanoic acid; sodium salt;Stéarate de sodium;  sodium; octadecanoate; OCTADECANOIC ACID, SODIUM SALT; SODIUM OCTADECANOATE; SODIUM SALT OCTADECANOIC ACID; BONDERLUBE 235; FLEXICHEM B; OCTADECANOIC ACID, SODIUM SALT (9CI); PRODHYGINE; SODIUM OCTADECANOATE; Natriumstearat; Octadecanoic acid sodium salt; Octadecanoic acid, sodium salt (1:1); SODIUM OCTADECANOATE; Stéarate de sodium; Stearic Acid; Sodium Salt; SODIUM N-OCTADECANOATE; Sodium stearate (a mixture of stearate and palmitate); Stearic acid 1-monoglyceride; sodiumstearate; Sodium stearate|Stearic acid sodium salt; sodyum stearat; sodyum siterat; stearat; sodyum sitearat; SODYUM STREAT; SODYUM SITEARAT; prodhygine; flexichemb; bonderlube235; Natriumstearat; SodiuM stearat; SODIUM STEARATE; stearatedesodium; SodiuM Stearate NF; SODIUMSTEARATE; PURE; STEARIC ACID SODIUM; Octadecanoic acid; sodium salt(822-16-2); sodıum stearate; sodyum stearat; sodyum stearate; sodyum stearat; sodıum stearate; SODIUM STEARATE; Sodium octadecanoate; Octadecanoic acid; sodium salt; sodium; octadecanoate; OCTADECANOIC ACID, SODIUM SALT; SODIUM OCTADECANOATE; SODIUM SALT OCTADECANOIC ACID; BONDERLUBE 235; FLEXICHEM B; OCTADECANOIC ACID, SODIUM SALT (9CI); PRODHYGINE; SODIUM OCTADECANOATE; Natriumstearat; Octadecanoic acid sodium salt; Octadecanoic acid, sodium salt (1:1); SODIUM OCTADECANOATE; Stéarate de sodium; Stearic Acid; Sodium Salt; SODIUM N-OCTADECANOATE; Sodium stearate (a mixture of stearate and palmitate); Stearic acid 1-monoglyceride; sodiumstearate; Sodium stearate|Stearic acid sodium salt; sodyum stearat; sodyum siterat; stearat; sodyum sitearat; SODYUM STREAT; SODYUM SITEARAT; prodhygine; flexichemb; bonderlube235; Natriumstearat; SodiuM stearat; SODIUM STEARATE; stearatedesodium; SodiuM Stearate NF; SODIUMSTEARATE; PURE; STEARIC ACID SODIUM; Octadecanoic acid; sodium salt(822-16-2); sodıum stearate; sodyum stearat; sodyum stearate; sodyum stearat; sodıum stearate; SODIUM STEARATE; Sodium octadecanoate; Octadecanoic acid; sodium salt; sodium; octadecanoate; OCTADECANOIC ACID, SODIUM SALT; SODIUM OCTADECANOATE; SODIUM SALT OCTADECANOIC ACID; BONDERLUBE 235; FLEXICHEM B; OCTADECANOIC ACID, SODIUM SALT (9CI); PRODHYGINE; SODIUM OCTADECANOATE; Natriumstearat; Octadecanoic acid sodium salt; Octadecanoic acid, sodium salt (1:1); SODIUM OCTADECANOATE; Stéarate de sodium; Stearic Acid; Sodium Salt; SODIUM N-OCTADECANOATE; Sodium stearate (a mixture of stearate and palmitate); Stearic acid 1-monoglyceride; sodiumstearate; Sodium stearate|Stearic acid sodium salt; sodyum stearat; sodyum siterat; stearat; sodyum sitearat; SODYUM STREAT; SODYUM SITEARAT; prodhygine; flexichemb; bonderlube235; Natriumstearat; SodiuM stearat; SODIUM STEARATE; stearatedesodium; SodiuM Stearate NF; SODIUMSTEARATE; PURE; STEARIC ACID SODIUM; Octadecanoic acid; sodium salt(822-16-2); sodıum stearate; sodyum stearat; sodyum stearate; sodyum stearat; sodıum stearate; SODIUM STEARATE; Sodium octadecanoate; Octadecanoic acid; sodium salt; sodium; octadecanoate; OCTADECANOIC ACID, SODIUM SALT; SODIUM OCTADECANOATE; SODIUM SALT OCTADECANOIC ACID; BONDERLUBE 235; FLEXICHEM B; OCTADECANOIC ACID, SODIUM SALT (9CI); PRODHYGINE; SODIUM OCTADECANOATE; Natriumstearat; Octadecanoic acid sodium salt; Octadecanoic acid, sodium salt (1:1); SODIUM OCTADECANOATE; Stéarate de sodium; Stearic Acid; Sodium Salt; SODIUM N-OCTADECANOATE; Sodium stearate (a mixture of stearate and palmitate); Stearic acid 1-monoglyceride; sodiumstearate; Sodium stearate|Stearic acid sodium salt; sodyum stearat; sodyum siterat; stearat; sodyum sitearat; SODYUM STREAT; SODYUM SITEARAT; prodhygine; flexichemb; bonderlube235; Natriumstearat; SodiuM stearat; SODIUM STEARATE; stearatedesodium; SodiuM Stearate NF; SODIUMSTEARATE; PURE; STEARIC ACID SODIUM; Octadecanoic acid; sodium salt(822-16-2); sodıum stearate; sodyum stearat; sodyum stearate; sodyum stearat; sodıum stearate; SODIUM STEARATE; Sodium octadecanoate; Octadecanoic acid; sodium salt; sodium; octadecanoate; OCTADECANOIC ACID, SODIUM SALT; SODIUM OCTADECANOATE; SODIUM SALT OCTADECANOIC ACID; BONDERLUBE 235; FLEXICHEM B; OCTADECANOIC ACID, SODIUM SALT (9CI); PRODHYGINE; SODIUM OCTADECANOATE; Natriumstearat; Octadecanoic acid sodium salt; Octadecanoic acid, sodium salt (1:1); SODIUM OCTADECANOATE; Stéarate de sodium; Stearic Acid; Sodium Salt; SODIUM N-OCTADECANOATE; Sodium stearate (a mixture of stearate and palmitate); Stearic acid 1-monoglyceride; sodiumstearate; Sodium stearate|Stearic acid sodium salt; sodyum stearat; sodyum siterat; stearat; sodyum sitearat; SODYUM STREAT; SODYUM SITEARAT; prodhygine; flexichemb; bonderlube235; Natriumstearat; SodiuM stearat; SODIUM STEARATE; stearatedesodium; SodiuM Stearate NF; SODIUMSTEARATE; PURE; STEARIC ACID SODIUM; Octadecanoic acid; sodium salt(822-16-2); sodıum stearate; sodyum stearat; sodyum stearate; sodyum stearat; sodıum stearate; SODIUM STEARATE; Sodium octadecanoate; Octadecanoic acid; sodium salt; sodium; octadecanoate; OCTADECANOIC ACID; SODIUM SALT; SODIUM OCTADECANOATE; SODIUM SALT OCTADECANOIC ACID; BONDERLUBE 235; FLEXICHEM B; OCTADECANOIC ACID, SODIUM SALT (9CI); PRODHYGINE; SODIUM OCTADECANOATE; Natriumstearat; Octadecanoic acid sodium salt; Octadecanoic acid, sodium salt (1:1); SODIUM OCTADECANOATE; Stéarate de sodium; Stearic Acid; Sodium Salt; SODIUM N-OCTADECANOATE; Sodium stearate (a mixture of stearate and palmitate); Stearic acid 1-monoglyceride; sodiumstearate; Sodium stearate|Stearic acid sodium salt; sodyum stearat; sodyum siterat; stearat; sodyum sitearat; SODYUM STREAT; SODYUM SITEARAT; prodhygine; flexichemb; bonderlube235; Natriumstearat; SodiuM stearat; SODIUM STEARATE; stearatedesodium; SodiuM Stearate NF; SODIUMSTEARATE; PURE; STEARIC ACID SODIUM; Octadecanoic acid; sodium salt(822-16-2);SODIUM STEARATE; SODİUM STEARATE; SODİUM STEARAT; SODYUM STEARAT; Sodium stearate; Sodyum stearat; SODYUM STEARAT; sodyum stiarat


SODİUM STEARATE

Sodium stearate

Sodium stearate
Stearic Acid Sodium Salt Structural Formula V.2.svg
Names
IUPAC name of Sodium Stearate
sodium octadecanoate
Other names of Sodium Stearate
sodium octadecanoate
Identifiers of Sodium Stearate
CAS Number of Sodium Stearate    
822-16-2 ☑
3D model (JSmol)    
Interactive image
ChEBI     of Sodium Stearate
CHEBI:132109 ☒
ChemSpider of Sodium Stearate    
12639 ☑
ECHA InfoCard of Sodium Stearate    100.011.354
EC Number of Sodium Stearate    
212-490-5
PubChem CID of Sodium Stearate    
2724691
UNII    
QU7E2XA9TG ☑
CompTox Dashboard (EPA)    
DTXSID9027318 Edit this at Wikidata
InChI[show]
SMILES[show]
Properties
Chemical formula    C18H35NaO2
Molar mass of Sodium Stearate    306.466 g·mol−1
Appearance of Sodium Stearate    white solid
Odor of Sodium Stearate    slight, tallow-like odor
Density of Sodium Stearate    1.02 g/cm3
Melting point of Sodium Stearate    245 to 255 °C (473 to 491 °F; 518 to 528 K)
Solubility of Sodium Stearate in water    soluble
Solubility of Sodium Stearate    slightly soluble in ethanediol
Hazards
NFPA 704 (fire diamond)    
NFPA 704 four-colored diamond
120
Flash point    176 °C (349 °F; 449 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
Sodium stearate is the sodium salt of stearic acid. This white solid is the most common soap. It is found in many types of solid deodorants, rubbers, latex paints, and inks. It is also a component of some food additives and food flavorings.[1]


Use of Sodium Stearate
Characteristic of soaps, sodium stearate has both hydrophilic and hydrophobic parts, the carboxylate and the long hydrocarbon chain, respectively. These two chemically different components induce the formation of micelles, which present the hydrophilic heads outwards and their hydrophobic (hydrocarbon) tails inwards, providing a lipophilic environment for hydrophobic compounds. The tail part dissolves the grease (or) dirt and forms the micelle. It is also used in the pharmaceutical industry as a surfactant to aid the solubility of hydrophobic compounds in the production of various mouth foams.

Production of Sodium Stearate
Sodium stearate is produced as a major component of soap upon saponification of oils and fats. The percentage of the sodium stearate depends on the ingredient fats. Tallow is especially high in stearic acid content (as the triglyceride), whereas most fats only contain a few percent. The idealized equation for the formation of sodium stearate from stearin (the triglyceride of stearic acid) follows:

(C18H35O2)3C3H5 + 3 NaOH → C3H5(OH)3 + 3 C18H35O2Na
Purified sodium stearate can be made by neutralizing stearic acid with sodium hydroxide.

Sodium stearate
INCI name: SODİUM STEARATE
Chemical name: Sodium stearate
EINECS / ELINCS number: 212-490-5
Its functions (INCI)
Cleaning agent: Helps keep a clean surface
Emulsifying agent: Promotes the formation of intimate mixtures between immiscible liquids by modifying the interfacial tension (water and oil)
Surfactant: Reduces the surface tension of cosmetics and contributes to the uniform distribution of the product during its use
Viscosity control agent: Increase or decrease the viscosity of cosmetics
This ingredient is present in 0.5% of cosmetics.
Deodorant stick (30.72%)
Solid soap (4.45%)


Sodium octadecanoate is an organic sodium salt comprising equal numbers of sodium and stearate ions. It has a role as a detergent. It contains an octadecanoate.

Preparation of seed latex
With suitable safety precautions, in suitable pressure equipment, the following latex is prepared. Since only 0.8 lb of this latex will be required in the second step of this procedure, the polymerization should be carried out on a suitably small scale.

To a solution of 804 parts of deionized, deaerated water, 8.25 parts of sodium stearate, 0.84 parts of 28% aqueous ammonia, and 0.84 parts of potassium persulfate is added, with agitation, 187 parts of vinyl chloride. The polymerization is carried out at 50°C for 25 hr. After venting, the resulting latex has an average particle size of 0.0342 μm.

(b) Emulsion polymerization with gradual addition
With suitable safety precautions, a 15-gallon autoclave, fitted with an off-center, T-shaped agitator rotating at 200 rpm, is charged with 36.7 lb of deionized and deaerated water, 0.27 lb of potassium persulfate, 0.27 lb of 28% aqueous ammonia, 0.80 lb of the above seed latex, and 0.0066 lb of sodium stearate. The autoclave is evacuated, and 9.0 lb of vinyl chloride is pumped in. The reaction mixture is maintained at 50°C. After the polymerization has been initiated, additional monomer is pumped into the autoclave at a rate of about 2.5 lb/hr and a 5.25% aqueous solution of sodium stearate (which must be maintained between 40° and 60°C to prevent gelling) is pumped in at a rate of approximately 1.2 lb/hr. Table XIV gives more precise details of the addition schedule. The addition of monomer and surfactant is completed in 20 hr. Heating is continued for an additional 3.2 hr after completion of the additions.

Sodium Stearate Properties (Theoretical)
Compound Formula of Sodium Stearate    C18H35NaO2
Molecular Weight of Sodium Stearate    306.49
Appearance of Sodium Stearate    White powder
Melting Point of Sodium Stearate    245-255 °C
Boiling Point of Sodium Stearate    360 °C (760 mmHg)
Density of Sodium Stearate    1.02 g/cm3
Solubility of Sodium Stearate in H2O    Soluble
Heat of Vaporization of Sodium Stearate    63.84 kJ/mol
Exact Mass of Sodium Stearate    306.253 g/mol
Monoisotopic Mass of Sodium Stearate    306.253 g/mol


About Sodium Stearate
Sodium Stearate is generally immediately available in most volumes. American Elements manufactures materials to many standard grades when applicable including Mil Spec (military grade), ACS, Reagent and Technical Grades; Food, Agricultural and Pharmaceutical Grades, Optical, Semiconductor, and Electronics Grades, and follows applicable USP, EP/BP, and ASTM testing standards. Most materials can be produced in high and ultra high purity forms (99%, 99.9%, 99.99%, 99.999%, and higher). Standard and custom packaging is available. Additional technical, research and safety (SDS) information is available. Please request a quote above to receive pricing information based on your specifications.
Sodium Stearate Synonyms
Sodium octadecanoate, Octadecanoic acid sodium salt, Stearic acid sodium salt, CH3(CH2)16COONa, Sodium monostearate


PRODUCT DETAILS & INFORMATION
Sodium stearate is an octadecanoic acid sodium salt that can be derived from either animal or vegetable sources.  sells both tallow-based and vegetable-based sodium stearate for use in a wide range of industrial manufacturing processes. Our NF-grade products are sold by the bag in both powder and flake forms. Place your order through our online store, or contact our office directly to request a quote or more information.
Sodium Stearate Uses
Sodium stearate is a versatile material used as an emulsifier, dispersant, gelling agent, stabilizer, binder, viscosity modifier and more. It is a major component of many soaps, cosmetics and food additives.  is a leading supplier of sodium stearate for some of today’s most demanding industrial customers. Our vegetable-based and tallow-based products offer identical chemical composition and properties, making either a great choice for your application.
Product Details
  sodium stearate has a two-year shelf life when stored at ambient temperatures. Our product is guaranteed to have a minimum 40 percent C18 and a minimum 90 percent C16 and C18 combined. It is completely free of genetically modified organisms (GMOs). The vegetable-derived version contains no animal products. Additional usage information can be found in the product data sheet, which is available for download on this page.
Handling and Storage Information
Sodium stearate is safe to handle and store under normal conditions. Its powder form presents an explosive hazard, and should only be handled while wearing a respirator. Gloves and other personal protective equipment should be worn at all times, as well as antistatic working shoes

Sodium stearate is the sodium salt of stearic acid. This white solid is the most common soap. It is found in many types of solid deodorants, rubbers, latex paints, and inks. It is also a component of some food additives and food flavorings. Characteristic of soaps, sodium stearate has both hydrophilic and hydrophobic parts, the carboxylate and the long hydrocarbon chain, respectively. These two chemically different components induce the formation of micelles, which present the hydrophilic heads outwards and their hydrophobic (hydrocarbon) tails inwards, providing a lipophilic environment for hydrophobic compounds. The tail part dissolves the grease (or) dirt and forms the micelle. It is also used in the pharmaceutical industry as a surfactant to aid the solubility of hydrophobic compounds in the production of various mouth foams. Sodium stearate is produced as a major component of soap upon saponification of oils and fats. The percentage of the sodium stearate depends on the ingredient fats. Tallow is especially high in stearic acid content (as the triglyceride), whereas most fats only contain a few percent. The idealized equation for the formation of sodium stearate from stearin (the triglyceride of stearic acid) follows:(C18H35O2)3C3H5 + 3 NaOH → C3H5(OH)3 + 3 C18H35O2Na. About SODIUM STEARATE: Sodium salt of stearic acid, a naturally occurring fatty acid.Function(s): Surfactant - Cleansing Agent; Surfactant - Emulsifying Agent; Viscosity Increasing Agent -Aqueous; VISCOSITY CONTROLLING. Sodium stearate is a fine, white powder and the sodium salt of stearic acid, an emulsifier. It is a stabiliser and a thickener used in soaps, colour cosmetics, deodorants and in hair and skin care products. odium stearate is used to harden some of the Lush's ‘hot pour' soaps and solid deodorants. It helps to create a wide variety of large shapes and sizes from which we then cut fresh slices for our customers to take home. It has also the ability to make a product opaque and contribute to give soaps a creamy white foam. Lush has developed a palm-free soap base to eliminate palm oil from its products, however, it is very difficult to source a sodium stearate that is completely palm free. Currently, Lush is working with suppliers to produce a good alternative and tests have already been made, but we haven't been happy with the result. Fortunately, one of those palm-free versions has been successfully used in Orangutan Soap, which is promising for the future.Lush has developed a palm-free soap base to eliminate palm oil from its products, however, it is very difficult to source a sodium stearate that is completely palm free. Currently, Lush is working with suppliers to produce a good alternative and tests have already been made, but we haven't been happy with the result. Fortunately, one of those palm-free versions has been successfully used in Orangutan Soap, which is promising for the future. Multi-functional ingredient with thickening, gelling, and emulsifying properties. Widely used as thickener in stick products (e.g. deodorants) and co-emulsifier in cream and lotions. Add powder to the hot water phase (approx. 80oC / 176oF) and stir until homogeneous. Typical use level 0.5-20% (deodorant sticks 4 - 8%, bar soaps 5 - 20%, co-emulsifiers <1%) . For external use only. Stick cosmetics (e.g. deodorants), color cosmetics, soaps, creams, lotions, sunscreens, after sun care products. Sodium stearate is produced by saponification of vegetable oils and fats. The resulting stearic acid is then further purified by reacting it with sodium hydroxide.Does not contain animal derived components.Stearic acid is a saturated fatty acid that can deposit on the surface in special conditions. This acid is insoluble in water and soluble in ethanol. The copper substrate should be cleaned, pickled, and soaked in 10% volume HNO3 for oxide elimination. The clean sample should be soaked in ethanolic stearic acid solution (0.01 M) and 30 V DC should be applied. The anode and cathode should be made of copper. Studying the X-ray powder diffractometer (XRD) peaks proves the existence of copper stearate components resulting from the reaction of stearic acid with copper. The resulting component was studied using SEM (Figure 20). These components provide the necessary roughness and low energy of hydrophobia so the contact angle arrives at 153° and so the hysteresis of the contact angle decreases. Other researchers created a self-assembled layer on porous alumina using stearic acid. his method was performed on anodized aluminum in 0.01 volume of stearic acid solution in ethanol for 30 min without applying any potential and superhydrophobia was achieved. After having reduced the diameter as much as possible by hot rolling (smallest diameter approximately 5.5 mm), smaller diameters must be produced by cold drawing (see Golis et al., 1999; Schruff, 2004). Tension is applied to draw the hot rolled wire in several pulls down to a final required diameter between 1 and 2 mm. Calcium and sodium stearate are usually applied as a drawing lubricant. These soaps are particularly suitable at high drawing speeds because the lubricant film remains intact. Due to friction, temperatures above 150 °C and as high as 400 °C develop, which cannot be reduced by the cooling effect of the lubricant and air alone. Thus the dies are cooled with water and the wire with compressed air. Compared with earlier machines, modern dry wire drawing machines are more efficient with regard to the consumption of cooling water and lubricant as well as the filtration of stearate dust emissions. Dry wire drawing machines are machines that pull in the forward direction (Ruge and Wohlfahrt, 2001; Schimpke et al., 1977). They pull the wire as many as 14 times, i.e. a series of 14 drawing dies which are usually powered separately using rotational speed regulators. Due to the insolubility of stearic acid, it cannot be applied to sedimentation of magnesium stearate in an aqueous solution. With the addition of soda to stearic acid sodium, stearate would form, which is completely soluble in water. Magnesium stearate can be created by a reaction of magnesium sulfate, which is soluble in water, with sodium stearate, and the magnesium stearate would deposit in solution because it is insoluble in water. If magnesium chloride exists in solution other than magnesium stearate, then sodium chloride would also be produced. Of course, there is the possibility of its creation from a magnesium ion solution. The melting point of magnesium stearate is 85.5 °C, but the calcium stearate produced from the reaction of calcium oxide and stearic acid melts at 155 °C. Stearic acid was applied on the zinc oxide nanorods and the contact angle increased. The salts of the acids containing a long aliphatic chain are known as soaps. Soap pyrolysis is of interest mainly because special soaps are frequently used in the manufacturing of various plastics as slip agents (particularly Ca+ 2 and Zn+ 2 salts). The slip agents are used to avoid sticking of the polymer to the processing machines that work at temperatures of 200-300°C. Pyrolysis of soaps typically generates hydrocarbons. Sodium stearate at 300-350°C generates a mixture of decane, decene, tetradecane, pentadecane, etc. Calcium stearate also generates a mixture of hydrocarbons, but containing a considerable proportion of the corresponding ketone. Zinc stearate, a common slip agent, also generates by pyrolysis mainly hydrocarbons. Slightly soluble in water and in ethanol (96 per cent). Stable. Incompatible with strong oxidizing agents. As the sodium salt of stearic acid, sodium stearate is a highly functional material that can be applied in various fields, especially in cosmetic formulations, where it is effective to stabilize emulsions like lotions, make products thicker, more viscous. It is also widely used in the deodorant produce, in which it can serve as a major constituent of soap produced by saponification of oils and fats. Besides, it can be applied in the production of latex paints, rubbers, inks and also a component of some food additives and flavorings. Besides, it can be applied in the production of latex paints, rubbers, inks and also a component of some food additives and flavorings. Sodium stearate is the sodium salt of stearic acid. This white solid is the most common soap. It is found in many types of solid deodorants, rubbers, latex paints, and inks. It is also a component of some food additives and food flavorings. Characteristic of soaps, sodium stearate has both hydrophilic and hydrophobic parts, the carboxylate and the long hydrocarbon chain, respectively. These two chemically different components induce the formation of micelles, which present the hydrophilic heads outwards and their hydrophobic (hydrocarbon) tails inwards, providing a lipophilic environment for hydrophobic compounds. It is also used in the pharmaceutical industry as a surfactant to aid the solubility of hydrophobic compounds in the production of various mouth foams. Sodium stearate is produced as a major component of soap upon saponification of oils and fats. The percentage of the sodium stearate depends on the ingredient fats. Tallow is especially high in stearic acid content (as the triglyceride), whereas most fats only contain a few percent. The idealized equation for the formation of sodium stearate from stearin (the triglyceride of stearic acid) follows. Sodium stearate is the sodium salt of stearic acid. This white solid is the most common soap. It is found in many types of solid deodorants, rubbers, latex paints, and inks. It is also a component of some food additives and food flavorings. Characteristic of soaps, sodium stearate has both hydrophilic and hydrophobic parts, the carboxylate and the long hydrocarbon chain, respectively. These two chemically different components induce the formation of micelles, which present the hydrophilic heads outwards and their hydrophobic (hydrocarbon) tails inwards, providing a lipophilic environment for hydrophobic compounds. The tail part dissolves the grease (or) dirt and forms the micelle. It is also used in the pharmaceutical industry as a surfactant to aid the solubility of hydrophobic compounds in the production of various mouth foams. Sodium stearate is produced as a major component of soap upon saponification of oils and fats. The percentage of the sodium stearate depends on the ingredient fats. Tallow is especially high in stearic acid content (as the triglyceride), whereas most fats only contain a few percent. The idealized equation for the formation of sodium stearate from stearin (the triglyceride of stearic acid) follows:(C18H35O2)3C3H5 + 3 NaOH → C3H5(OH)3 + 3 C18H35O2Na. About SODIUM STEARATE: Sodium salt of stearic acid, a naturally occurring fatty acid.Function(s): Surfactant - Cleansing Agent; Surfactant - Emulsifying Agent; Viscosity Increasing Agent -Aqueous; VISCOSITY CONTROLLING. Sodium stearate is a fine, white powder and the sodium salt of stearic acid, an emulsifier. It is a stabiliser and a thickener used in soaps, colour cosmetics, deodorants and in hair and skin care products. odium stearate is used to harden some of the Lush's ‘hot pour' soaps and solid deodorants. It helps to create a wide variety of large shapes and sizes from which we then cut fresh slices for our customers to take home. It has also the ability to make a product opaque and contribute to give soaps a creamy white foam. Lush has developed a palm-free soap base to eliminate palm oil from its products, however, it is very difficult to source a sodium stearate that is completely palm free. Currently, Lush is working with suppliers to produce a good alternative and tests have already been made, but we haven't been happy with the result. Fortunately, one of those palm-free versions has been successfully used in Orangutan Soap, which is promising for the future.Lush has developed a palm-free soap base to eliminate palm oil from its products, however, it is very difficult to source a sodium stearate that is completely palm free. Currently, Lush is working with suppliers to produce a good alternative and tests have already been made, but we haven't been happy with the result. Fortunately, one of those palm-free versions has been successfully used in Orangutan Soap, which is promising for the future. Multi-functional ingredient with thickening, gelling, and emulsifying properties. Widely used as thickener in stick products (e.g. deodorants) and co-emulsifier in cream and lotions. Add powder to the hot water phase (approx. 80oC / 176oF) and stir until homogeneous. Typical use level 0.5-20% (deodorant sticks 4 - 8%, bar soaps 5 - 20%, co-emulsifiers <1%) . For external use only. Stick cosmetics (e.g. deodorants), color cosmetics, soaps, creams, lotions, sunscreens, after sun care products. Sodium stearate is produced by saponification of vegetable oils and fats. The resulting stearic acid is then further purified by reacting it with sodium hydroxide.Does not contain animal derived components.Stearic acid is a saturated fatty acid that can deposit on the surface in special conditions. This acid is insoluble in water and soluble in ethanol. The copper substrate should be cleaned, pickled, and soaked in 10% volume HNO3 for oxide elimination. The clean sample should be soaked in ethanolic stearic acid solution (0.01 M) and 30 V DC should be applied. The anode and cathode should be made of copper. Studying the X-ray powder diffractometer (XRD) peaks proves the existence of copper stearate components resulting from the reaction of stearic acid with copper. The resulting component was studied using SEM (Figure 20). These components provide the necessary roughness and low energy of hydrophobia so the contact angle arrives at 153° and so the hysteresis of the contact angle decreases. Other researchers created a self-assembled layer on porous alumina using stearic acid. his method was performed on anodized aluminum in 0.01 volume of stearic acid solution in ethanol for 30 min without applying any potential and superhydrophobia was achieved. After having reduced the diameter as much as possible by hot rolling (smallest diameter approximately 5.5 mm), smaller diameters must be produced by cold drawing (see Golis et al., 1999; Schruff, 2004). Tension is applied to draw the hot rolled wire in several pulls down to a final required diameter between 1 and 2 mm. Calcium and sodium stearate are usually applied as a drawing lubricant. These soaps are particularly suitable at high drawing speeds because the lubricant film remains intact. Due to friction, temperatures above 150 °C and as high as 400 °C develop, which cannot be reduced by the cooling effect of the lubricant and air alone. Thus the dies are cooled with water and the wire with compressed air. Compared with earlier machines, modern dry wire drawing machines are more efficient with regard to the consumption of cooling water and lubricant as well as the filtration of stearate dust emissions. Dry wire drawing machines are machines that pull in the forward direction (Ruge and Wohlfahrt, 2001; Schimpke et al., 1977). They pull the wire as many as 14 times, i.e. a series of 14 drawing dies which are usually powered separately using rotational speed regulators. Due to the insolubility of stearic acid, it cannot be applied to sedimentation of magnesium stearate in an aqueous solution. With the addition of soda to stearic acid sodium, stearate would form, which is completely soluble in water. Magnesium stearate can be created by a reaction of magnesium sulfate, which is soluble in water, with sodium stearate, and the magnesium stearate would deposit in solution because it is insoluble in water. If magnesium chloride exists in solution other than magnesium stearate, then sodium chloride would also be produced. Of course, there is the possibility of its creation from a magnesium ion solution. The melting point of magnesium stearate is 85.5 °C, but the calcium stearate produced from the reaction of calcium oxide and stearic acid melts at 155 °C. Stearic acid was applied on the zinc oxide nanorods and the contact angle increased. The salts of the acids containing a long aliphatic chain are known as soaps. Soap pyrolysis is of interest mainly because special soaps are frequently used in the manufacturing of various plastics as slip agents (particularly Ca+ 2 and Zn+ 2 salts). The slip agents are used to avoid sticking of the polymer to the processing machines that work at temperatures of 200-300°C. Pyrolysis of soaps typically generates hydrocarbons. Sodium stearate at 300-350°C generates a mixture of decane, decene, tetradecane, pentadecane, etc. Calcium stearate also generates a mixture of hydrocarbons, but containing a considerable proportion of the corresponding ketone. Zinc stearate, a common slip agent, also generates by pyrolysis mainly hydrocarbons. Slightly soluble in water and in ethanol (96 per cent). Stable. Incompatible with strong oxidizing agents. As the sodium salt of stearic acid, sodium stearate is a highly functional material that can be applied in various fields, especially in cosmetic formulations, where it is effective to stabilize emulsions like lotions, make products thicker, more viscous. Sodium Stearate is also widely used in the deodorant produce, in which it can serve as a major constituent of soap produced by saponification of oils and fats. Besides, Sodium Stearate can be applied in the production of latex paints, rubbers, inks and also a component of some food additives and flavorings. Besides, it can be applied in the production of latex paints, rubbers, inks and also a component of some food additives and flavorings. Sodium stearate is the sodium salt of stearic acid. This white solid is the most common soap.Sodium Stearate is found in many types of solid deodorants, rubbers, latex paints, and inks. It is also a component of some food additives and food flavorings. Characteristic of soaps, sodium stearate has both hydrophilic and hydrophobic parts, the carboxylate and the long hydrocarbon chain, respectively. These two chemically different components induce the formation of micelles, which present the hydrophilic heads outwards and their hydrophobic (hydrocarbon) tails inwards, providing a lipophilic environment for hydrophobic compounds. Sodium Stearate is also used in the pharmaceutical industry as a surfactant to aid the solubility of hydrophobic compounds in the production of various mouth foams. Sodium stearate is produced as a major component of soap upon saponification of oils and fats. The percentage of the sodium stearate depends on the ingredient fats. Tallow is especially high in stearic acid content (as the triglyceride), whereas most fats only contain a few percent. The idealized equation for the formation of sodium stearate from stearin (the triglyceride of stearic acid) follows.


Sodium Stearate Properties (Theoretical)
Compound Formula of Sodium Stearate    C18H35NaO2
Molecular Weight of Sodium Stearate    306.49
Appearance of Sodium Stearate    White powder
Melting Point of Sodium Stearate    245-255 °C
Boiling Point of Sodium Stearate    360 °C (760 mmHg)
Density of Sodium Stearate    1.02 g/cm3
Solubility of Sodium Stearate in H2O    Soluble
Heat of Vaporization of Sodium Stearate    63.84 kJ/mol
Exact Mass of Sodium Stearate    306.253 g/mol
Monoisotopic Mass of Sodium Stearate    306.253 g/mol
 

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