Sorbitan Monooleate | Sorbitan Oleate | CAS 1338-43-8

Sorbitan Monooleate,Organophilic clay and Emulsifier are all additives used in oilfield drilling mud.Polysorbate 80’s just that they have played their respective different roles.

Today, our main purpose is to introduce our Sorbitan Monooleate. I hope the following information is helpful to you, as we are a professional manufacturer of polysorbate 80 oilfield drilling mud additives.

Sorbitan Mono Oleate (SMO)

Technical Information of SORBITAN MONOOLEATE

 1 APPEARANCE :  yellow to amber oily liquid

 2 OTHER NAMES : Sorbitan Oleate | polysorbate 80

3 HLB VALUE   4.3


  • E NO.: E494


  • Sorbitan Monooleate Molecular Weight: 428.59

  • Loading Port: Shanghai Port
  • Shipment: 7 days to 10 work days.
Sorbitan Monooleate
Sorbitan Monooleate

 5 CAS NO. 1338-43-8

6 PACKAGING 200kg/drum or 1000kg/IBC net weight(Other packages are available upon request)

7 STORAGE AND PRESERVATION  : Preserved dry at room temperature, avoid sunlight

8 SHELF LIFE 1years (In cool place)

Advantages of Sorbitan Monooleate

Sorbitol monooleate has many advantages, one of which is that it has a wide range of applications, whether in personal care products:

such as toothpaste, soap, detergents, and in some industrial fields, such as paints, adhesives, Sorbitol monooleate is used in oilfield drilling fluids, and it is also used in some cosmetics and pharmaceuticals.

One of its biggest features is that it shows very stable characteristics and lubrication effects, and has an obvious emulsification effect.

It can dissolve well with some such as pure petroleum ether and toluene.

Sorbitan Monooleate

sorbitan monooleate

A type of emulsifier, stabilizer, and thickener used in food, medicine, and household products is called sorbitol monooleate.

Where is sorbitan monooleate found?

How can you avoid contact with sorbitan monooleate ?

What are some products that may contain sorbitan monooleate  ?

This product is used in cosmetics such as shampoo, skincare products, and other household items, as well as in some foods or industrial products.

Additional resources and links for sorbitan monooleate  

If you would like to get more information about sorbitan monooleate products, please contact our technical department and sales department. Please simply fill in the form. This will greatly help us provide more effective products. Information for you.


This kind of amber flowing liquid has a slight smell and can be dispersed with hot and cold water.

It is mainly composed of 95% sorbitol and a mixture of monoanhydride and dianhydride. Such a sorbitol mono oil acid ester. Its biggest application is as an ingredient in food, such as cakes or cake mix, and some baked goods.

It is also used in some dairy and vegetable fat whipped creams, such as some candies, margarine, salad dressings or some sauces, as well as in some edible yeast powders, or in liquid tea concentrates and liquid fruit or herbal concentrates.

Sorbitol monooleate product was used. It is used in some lubricants or emulsifiers used in the textile industry, as well as in cosmetics and pharmaceuticals. In some self-stabilized water-in-oil and oil-in-water emulsions, metal processing, sorbitol is only used in large quantities.

Sorbitan Monooleate | Sorbitan Oleate | CAS 1338-43-8

When it comes to emulsion formation, Sorbitan Monooleate stands out for its unbeatable emulsifying strength. It can make oil-in-water emulsions because of the way its molecules are made.

This nontoxic detergent is made from a natural fatty acid called oleic acid and a sugar alcohol called sorbitol. Its ability to combine lets it make fine, stable emulsions, which improve the structure, look, and function of the final product, especially paints and drilling oil fluids.

What is it?

As a high-quality surfactant or emulsifier, it is used in some ointments, lotions, creams, etc.It is as known as polysorbate 80.

Product Specification

Molecular Formula

Sorbitan Oleate, also known as Sorbitan Monooleate, has a molecular formula of C24H44O6. This chemical formula provides insights into the composition and structure of Sorbitan Monooleate . It consists of carbon, hydrogen, and oxygen atoms.

It belongs to the class of sorbitan esters. Derived from the reaction between oleic acid, a natural fatty acid, and sorbitol, a sugar alcohol. Its unique molecular structure contributes to its excellent emulsifying properties.

The physico-chemical properties of Sorbitan Monooleate make it a versatile and valuable component in the formulation of products.


CAS number is a unique identifier assigned by the Chemical Abstracts Service to each chemical substance, allowing for easy reference and identification in scientific literature and regulatory processesf.

Sorbitan Oleate CAS number, 1338-43-8, helps to accurately identify and distinguish Sorbitan Oleate from other compounds, ensuring its proper usage and compliance with safety regulations.


Used surfactant and emulsifier and is known by several synonyms in the industry. One of its primary synonyms is sorbitan monooleate which refers to its chemical composition of sorbitan and oleic acid.

This name accurately represents the molecular structure of Sorbitan Monooleate . Another is sorbitan oleate. The abbreviation S-80 is also used as a shorthand reference for Sorbitan Monooleate.

Product Details

Zhejiang Camp-Shinning is providing this article of product details of Sorbitan Oleate, for further analysis of the chemical. We listed important information you may need to know about  Sorbitan Oleate 80.

Chemical Description

Sorbitan Monooleate is a non-ionic surfactant that possesses several distinctive chemical characteristics. It is primarily utilized in the formation of oil-in-water emulsions, where it effectively stabilizes the interface between oil and water.

Furthermore, when combined with low hydrophilic-lipophilic balance (HLB) surfactants, Sorbitan Monooleate can facilitate the creation of water-in-oil emulsions.

It is an EPA-approved oil spill dispersant, an essential component in environmental cleanup efforts. The hydrophobic nature enables it to interact strongly with oil molecules, and it is promoting their dispersion and aiding in the breakdown of oil spills.

Chemically, Sorbitan Oleate belongs to the sorbitan ester series of surfactants. It is produced through the esterification process, which involves the reaction of one or more hydroxyl groups of sorbitan with fatty acids.

This reaction leads to the formation of a sorbitan ester, specifically sorbitan monooleate, which is the primary composition of Sorbitan Oleate.

Chemical Name

Sorbitan Oleate chemical name is sorbitan monooleate. This name accurately describes the molecular composition of the compound. Sorbitan refers to the core structure derived from sorbitol, a sugar alcohol.

Monooleate indicates that the compound is formed through the esterification of one molecule of sorbitan with oleic acid, a fatty acid. This chemical name specifies the specific fatty acid involved in the esterification process, highlighting the presence of the oleate group.

Molecular Weight

Sorbitan Oleate molecular weight is determined by adding the atomic weights of the carbon, hydrogen, and oxygen atoms present in its chemical formula. The molecular weight of 428.60 g/mol provides valuable information about the mass of Sorbitan Oleate 80 on a molecular scale.

Ingredient Origin

Oleic acid, a fatty acid commonly found in vegetable oils such as olive oil, provides the hydrophobic properties necessary for Sorbitan Oleate‘s emulsifying capabilities. Sorbitol, a sugar alcohol derived from the hydrogenation of glucose, serves as the backbone for the sorbitan structure in Sorbitan Oleate 80.

This combination of oleic acid and sorbitol results in a surfactant with excellent emulsifying properties, making S 80 a preferred choice in various industries.


As S 80 emulsifier, it plays a crucial role in forming and stabilizing emulsions. It enables the dispersion of oil droplets in water, creating oil-in-water emulsions. It also acts as a wetting agent, improving the spreadability and contact of liquids on solid surfaces.

It reduces the surface tension of liquids, allowing them to penetrate and cover surfaces more effectively. It can also function as an antifoam and defoamer agent.

Physical Form

The color of Sorbitan Oleate S 80 can range from pale yellow to a deeper amber hue, depending on factors such as purity and storage conditions.

Density of Sorbitan Oleate s 80 can vary slightly from 0.97 to 1.03 g/cm3, which is a moderately high density. Span 80 viscosity is heavier compared to an equal volume of water.


The Hydrophilic-Lipophilic Balance value of Sorbitan Oleate is 4.3. The HLB value is a measure of the relative hydrophilic and lipophilic properties of a surfactant. Sorbitan Oleate80  HLB value of 4.3 places it within the typical range for water-in-oil emulsifiers.

Sorbitan Oleate has a slightly higher affinity for oil than water. It is commonly used in formulations where the goal is to create stable water-in-oil emulsions.

A lower HLB value indicates a higher affinity towards lipophilic substances. In comparison between S  20 vs S 80, S 80 has lower HLB value indicates a stronger preference for oil and hydrophobic environments.

S 80 particularly suitable for applications where oil-in-water emulsions are desired, as it can efficiently stabilize and disperse oil droplets in water-based systems. Sorbitan Oleate S 20 with a higher HLB value exhibits more hydrophilic characteristics, making it better suited for water-in-oil emulsions.


Its primary applications is as an emulsifier, facilitating the formation and stabilization of emulsions, particularly oil-in-water emulsions. By reducing the interfacial tension between oil and water, Sorbitan Oleate S 80 enables the homogeneous dispersion of oil droplets within water-based systems.

It also serves as an emulsion stabilizer, helping to maintain the stability and uniformity of emulsions over time. Its presence prevents phase separation and enhances the shelf life of emulsion-based products.

Another important application of Sorbitan Oleate S 80 is as a pigment wetter. In the paint, ink, and coatings industries, it aids in dispersing and wetting pigments, ensuring their even distribution and adherence to surfaces.

It also acts as a surfactant and dispersing agent, enhancing the Sorbitan Oleate S 80 solubility and dispersibility of various substances in liquid systems. It enables efficient mixing, reduces surface tension, and promotes the uniform dispersion of particles or ingredients.

Safety Profile

Sorbitan Oleate is commonly available in different packaging options, such as 200kg drums or 1000kg Intermediate Bulk Container, with net weights specified. Other packaging options is available at Zhejiang Camp-Shinning upon request.

Zhejiang Camp-Shinning recommendeds to store it in a preserved dry environment at room temperature, away from direct sunlight.

Proper storage conditions contribute to prolonging its shelf life, which is typically stated to be one year when stored in a cool place. Following storage recommendations helps maintain the integrity and performance of Sorbitan Oleate.

We recommend to use a personal protective equipment ike dust mask, eyeshields and gloves.

As with any chemical substance, it is crucial to consult the safety data sheet (Sorbitan Oleate 80 SDS) provided by Zhejiang Camp-Shinning for specific information regarding handling, storage, and safety precautions.

Sorbitan Oleate 80 Preparation Products and Raw Materials

First, a sorbitol solution is heated to remove excess water, resulting in sorbitol. Then, sorbitol reacts with a catalyst to produce sorbitan. Next, oleic acid is refined to obtain essential oil.

The oleic acid and sorbitan anhydride are mixed and subjected to an esterification reaction in a reaction kettle for about 3 hours at a temperature of 210-220°C. The resulting mixture is then dehydrated and subjected to further esterification under vacuum to obtain a crude product.

The crude product is cooled and precipitated, and the sediment is removed, leaving behind the final product, which is the emulsifier Sorbitan Oleate S 80.

The advantage of this process is that by adjusting the molar ratio of acid to alcohol, it is possible to reduce the amount of raw materials needed, decrease the residue of sorbitol, increase the amount of product produced, and improve the production rate of the emulsifier Sorbitan Oleate S 80.

Sorbitan Oleate S 80 Suppliers

There are a lot of S  80 suppliers in the market. A lot of chemical companies are available worldwide. There are chemical companies and suppliers in the US, in India and especially in China.

When it comes to sourcing high-quality Sorbitan Monooleate, you can ask Zhejiang Camp-Shinning is your trusted supplier. We provide rheological additives like organoclay, organophilic lignite, and emulsifiers.

We are one of the leading providers of specialty chemicals. Choosing Zhejiang Camp-Shinning ensures that you receive a reliable and consistent supply of organoclay, organophilic lignite, and emulsifiers, meeting the stringent standards of quality and performance.

Welcome to inquire about our products : Sorbitan Monooleate .