Sorbitan monopalmitate CAS 26266-57-9

Sorbitol as raw material, through dehydration closed loop formation of sorbitol, and then with palmitic acid esterification reaction prepared.

About Sorbitan monopalmitate:  

Chemical structure: Sorbitan mono-palmitate is formed by esterification of sorbitan anhydride (D-glucitol) and palmitic acid (C16:0). Its molecular formula is C26H46O8 and its relative molecular mass is 482.64.

Physical state: Sorbitan monopalmitate is a slightly yellow to yellow transparent liquid with a slight special odour.

Solubility: Sorbitan monopalmitate is soluble in organic solvents such as ethanol, fats and propylene glycol, but insoluble in water.

Stability: Sorbitan monomalmitate is relatively stable at room temperature and is not easy to hydrolysis, oxidation and other reactions. However, under high temperature, strong acid, strong base and other conditions, hydrolysis, polymerization and other reactions may occur.

Emulsification: Sorbitan monomalmitate has excellent emulsification properties, and can mix two kinds of insoluble liquids (such as oil and water) to form a stable emulsion. Its emulsifying capacity is related to its concentration, temperature, stirring speed and other factors.

Thickening: sorbitan monomalmitate can increase the viscosity of the solution, so that it has a certain consistency, to play a role in thickening.

Surface activity: Sorbitan monomalmitate has a certain surface activity, which can reduce the surface tension of the liquid, making it easy to wet and spread.

Safety and toxicity: Sorbitan monopalmitate is a relatively safe food additive, which has been widely used in food, medicine and cosmetics. However, for some people, such as people with allergies or certain diseases, there may be an allergy or discomfort to sorbitan monomalmitate. During use, relevant regulations and standards should be followed to ensure its quality and safety.

sorbitan monopalmitate

Technical Parameter of Sorbitan monopalmitate:

 Product Name      Short Name   HLB Melting pointAppearance
Sorbitan monopalmitateN/A6.745-47White to yellowish waxy solid

Applications of Sorbitan monopalmitate  :

Food industry

Dairy products: Sorbitan monopalmitate can be added as an emulsifier to yoghurt, cheese, butter and other dairy products to improve their texture, taste and stability. Through emulsification, the oil and water can be mixed evenly, preventing the separation of oil and water, improving the quality of the product and extending the shelf life.

Confectionery and chocolate: In the production of confectionery and chocolate, sorbitan mono-palmitate can be used as a stabilizer and emulsifier to improve the appearance and taste quality of the product. It helps to prevent the candy from softening and sticky in high temperatures or high humidity, maintaining the hardness and crispness of the candy.

Beverages: Sorbitan mono-palmitate can be added to vegetable protein drinks, fruit juice drinks coffee drinks, etc., as a thickening agent and stabilizer to improve the taste and stability of the beverage. It helps prevent particles or oils in the drink from floating up, maintaining the uniformity and stability of the drink.

Baked goods: In baked goods, sorbitan mono-palmitate can be used as an emulsifier and moisturizer to improve the texture and baking properties of dough. It helps to reduce the viscosity of the dough and improve the ductility of the dough and the taste of the finished product.

Pharmaceutical industry

Drug preparation: Sorbitan monomalmitate can be used as a drug carrier, dispersant and thickening agent for the preparation of various drug preparations, such as oral solutions, suspensions, soft capsules, etc. It helps to improve the solubility and bioavailability of the drug, improve the taste of the drug and ease of delivery.

Drug delivery: Sorbitan monomalmitate can also be used as an emulsifier and stabilizer in drug delivery systems to help encapsulate drugs in microspheres or nanoparticles for sustained release and targeted delivery of drugs. This application helps to improve the efficacy of the drug and reduce side effects.

The cosmetics industry

Skin care products: Sorbitan monopalmitate can be added as an emulsifier and wetting agent to skin care products such as creams, lotions and serums. It helps to blend oily and water-based ingredients evenly, improving the texture and stability of the product, providing moisturizing and moisturizing to the skin.

Cosmetic products: In cosmetic products, sorbitan monopalmitate can be used as a wetting agent and thickening agent to improve the texture and stability of the product. It is often used in lipstick, eyeshadow, foundation and other makeup to provide lasting effects and improve product adhesion and ductility.

Shampoo and care products: In shampoos and conditioners, sorbitan monopalmitate acts as a softener and emulsifier to make hair softer and smoother. It helps distribute the oil components evenly throughout the hair, preventing tangles and dryness.

Other industrial fields

Inks and coatings: In inks and coatings, sorbitan monopalmitate can be used as a stabilizer and thickener to improve the rheological properties of inks and coatings. It helps prevent the precipitation and separation of ink and paint and improves the effect and quality of printing and coating.

Petroleum industry: In the petroleum industry, sorbitan monopalmitate can be used as surfactants and emulsifiers in oil fields to help improve oil recovery efficiency and reduce oil recovery costs. It can reduce the interfacial tension of oil and water and promote the separation and treatment of the oil and water mixture.

Production Method of Sorbitan monopalmitate  :

Chemical synthesis

Chemical synthesis is a common method for preparing sorbitan anhydride monopalmitate. The method is to esterify sorbitan anhydride with palmitic acid through a chemical reaction to obtain the target product. The following are the specific steps of chemical synthesis:

Esterification reaction: sorbitan anhydride is mixed with palmitic acid according to a certain molar ratio, adding a catalyst and an appropriate amount of solvent, and the esterification reaction is carried out under a certain temperature and pressure. In the process of the esterification reaction, sorbitan anhydride and palmitic acid are combined by an esterification bond to form sorbitan monomalmitate.

Separation and purification: After the reaction, the resulting products are separated and purified. Sorbitan monomalmitate is usually separated from the reaction mixture by extraction, distillation, crystallization and other methods, and then refined and dried to get the final product.

The advantages of chemical synthesis are a mature process, high yield and strong applicability. The molecular weight and other properties of sorbitan monomalmitate can be controlled by adjusting the reaction conditions and the proportion of raw materials. In addition, the chemical synthesis method can adopt continuous production, which is conducive to reducing production costs and improving production efficiency.

Enzymatic method

The enzymatic method is a green and environmentally friendly production method, which produces sorbitan monomalmitate by the esterification reaction of sorbitan anhydride and palmitic acid catalyzed by the enzyme. The following are the specific steps of enzymatic production:

Enzyme selection and preparation: Select the appropriate enzyme (such as lipase), and use the appropriate solvent and buffer to prepare the enzyme solution.

Esterification reaction: the sorbitan anhydride and palmitic acid are mixed according to a certain molar ratio and added to the enzyme solution, and esterification is carried out under the appropriate temperature and pH conditions. Enzymes as catalysts can accelerate the esterification reaction.

Separation and purification: After the end of the reaction, sorbitan anhydride mono palmitate is separated from the reaction mixture by extraction, distillation, crystallization and other methods, and then refined and dried to obtain the final product.

The enzymatic method has the following advantages:

Mild conditions: Enzyme-catalyzed reactions are usually carried out under mild conditions and do not require excessive temperature and pressure, which helps to protect the stability of the reaction products.

Strong selectivity: The enzyme has a high degree of selectivity and can exclusively catalyze the esterification of specific substrates, which is conducive to obtaining high-purity sorbitan anhydride monopalmitate.

Environmentally friendly: The enzymes used in the enzymatic production process are biocatalysts, which have high specificity and catalytic activity, mild reaction conditions, and reduce environmental pollution.

Reusable: Enzymes can be recycled and reused, reducing production costs.

However, enzymatic methods also have some challenges and limitations, such as limited sources of enzymes, high prices, and strict control of reaction conditions. Therefore, in actual production, it is necessary to choose the appropriate production method according to the specific needs and conditions.

Packing & Shipping of Sorbitan monopalmitate:

 We have many different kinds of packing which depend on Sorbitan monopalmitate quantity.
 Sorbitan monopalmitate packing: 1kg/bottle, 25kg/barrel, or 200kg/ barrel.
 Sorbitan monopalmitate shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

Sorbitan monopalmitate Properties    

  Other Names   Span 40;      
  S - 40;      
  Sorbitan monopalmitate
  CAS No.   26266-57-9
  Compound Formula   C22H42O6
  Molecular Weight   N/A
  Appearance   White to yellowish waxy solid
  Melting Point   N/A
  Boiling Point   N/A
  Density   N/A
  Solubility in H2O   N/A
  Exact Mass   N/A

Sorbitan monopalmitate Health & Safety Information    

  Signal Word   N/A
  Hazard Statements   N/A
  Hazard Codes   N/A
  Risk Codes   N/A
  Safety Statements   N/A
  Transport Information   N/A

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