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Sorbitan Monooleate

Sorbitan monooleate is a type of monoester that comes from combining oleic acid and hexitol anhydrides. These anhydrides are made from sorbitol. It is usually amber in color. It has oily, and viscous liquid with distinctive characteristics. It's a type of ester that's also classified as a fatty acid. It has many uses across different industries, but one particularly noteworthy application is as an emulsifier in drilling fluids.

Sorbitan Monooleate

Organophilic Clay For Oil Drilling Mud

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Organoclay For Solvent Based Paint

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Organoclay For Water Based Paint

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Organo Bentonite For Grease

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Organoclay For Cosmetics

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Solvent Based Organoclay

Water Based Organoclay

Organophilic Clay

Drilling Grade Organophilic Clay

Paint Grade Organoclay

Grease Grade Organoclay

Cosmetics Grade Organoclay

Ink Grade Organoclay

Sorbitan Monooleate

Sorbitan Monooleate 

monostearate sorbitan is really important in the oil and gas industry because  helps mix things together in drilling fluids. During drilling operations, drilling mud fluids are used to lubricate the drill bit, transport drill cuttings to the surface, and maintain the stability of the borehole.

SMO helps mix different components evenly in drilling fluids by working as a good emulsifying agent. It helps keep the drilling fluid’s oil and water phases from separating while also maintaining the desired viscosity by creating stabilizing emulsions.

Polysorbate 80 which the CAS NO. is 1338-43-8, MOLECULAR FORMULA is C24H44O6 , E NO.: E494

SMO Oil Packing | Shipment | Export Port  

The packaging of SMO Oil is divided into 25 kg barrels, 200 kg barrels or 900 kg barrels. We can package according to customer requirements. Usually the shipping time is 7~10 working days after receiving the deposit. Our main export ports are Shanghai Port and Ningbo Port.

When you store, we recommend that you store in a cool, dry place, and the packaging needs to be sealed and away from light.

SMO Oil ,It is a non-hazardous product and its shelf life is one year.

We suggest that you combine SMO with Polysorbate 80 when using it for better results.

What is sorbitan oleate? 

Names and Identifiers

There are a number of different names for sorbitan monooleate on the market. Someone who is fresh to the field can stumble upon alternative names for it and get perplexed in knowing what is sorbitan monooleate. In order to clear up any misunderstandings, we provide a list of the potential names, the chemical formula, and any additional identifiers.

Sorbitan Mono Oleate (SMO)

Molecular Formula

The chemical composition of Sorbitan Oleate is represented by the formula C24H44O6. Monostearate sorbitan is made up of 24 carbon atoms, 44 hydrogen atoms, and 6 oxygen atoms. It is a member of the sorbitan ester family of chemical compounds. Sorbitan is it’s the parent compound.

The Sorbitan Oleate molecule has the chemical formula C24H44O6, which indicates that monostearate sorbitan is a reasonably big molecule. Sorbitan monooleate structure plays a role in the qualities and usefulness. The presence of oxygen atoms contributes to the molecule’s polar features, while the presence of carbon and hydrogen atoms shows that the molecule has a hydrophobic, or water-repelling, nature. It is able to function as an emulsifier in drilling fluids as a result of the molecular formula that monostearate sorbitan  has.

Advantages of sorbitan monooleate

sorbitan monooleate has a wide range of applications:

  1. food, pharmaceutical, cosmetics, textile, metal processing, oil drilling mud,grease etc.
  2. Used in sealants, paints, and pigments.
  3. Can be used in cakes, cake powder, sauce chocolate, butter vegetable, salads.
  4. It can be used in nail polish, face cream, shampoo and other cosmetics.
  5. It is known as an advanced lubricant, stabilizer, thickener emulsifier.
  6. Although SMO oil is insoluble in water, it can dissolve in some high temperature water (hot water).He is soluble in both methanol and ethanol.


Where is sorbitan monooleate found?

In food, household products and pharmaceuticals, as well as in industrial production, a large number of stabilizers, thickeners and emulsifiers are required, and sorbitan monooleate can meet these performance needs.

How can you avoid contact with sorbitan monooleate?

Pls contact us and to avoid those.

What are some products that may contain sorbitan monooleate ? | Application

Firstly,One of the most widely used areas currently is the food industry, where monostearate sorbitan can help achieve and prevent the separation of oil and water throughout production, ensuring the aesthetic taste and appearance of the food.

Because we want to ensure that color degradation and oxidation of food are avoided after comprehensive oxidation. So many people call it an antioxidant and emulsifier in food.

The products produced by these food manufacturers include candies, butter, salad dressings, baked goods, cakes or cake mixes, yeast powder and some liquid fruits or some liquid concentrates.

In addition to non-food applications, monostearate sorbitan can also be used in some textiles, such as lubricants and emulsifiers used in the textile industry, including some plastic food wraps.

In the grease industry, that is, in the production of lubricants, sorbitan ester is used as a lubricant to avoid the formation of deposits.

As an emulsifier, sorbitan ester can avoid separation or stratification during the storage of cosmetics, which makes the storage of cosmetics relatively stable. At the same time, its antioxidant properties make the production of cosmetics more unique.


Description and Product Specification


Fatty acid



Form Oliy liquid



Max 2.0

Acid Value  Max 8 mgKOH/gm
Saponification Value 145-160 mgKOH/gm
Sorbitol, Sorbitan and Isosorbide esters content Min 95%
 Hydroxyl Value 193-210 mgKOH/gm
Heavy Metals (as Pb) Max 10mg/kg
Arsenic Max3 mg/kg
Cadmium Max 1 mg/kg


Sorbitan Monooleate Molecular Weight:

Max 1mg/kg

Max 2



Sorbitan Mono Oleate | CAS No.: 1338-43-8

Other Identifiers

The Chemical Abstracts Service assigns the identification number 1338-43-8 to the compound known as sorbitan monooleate. CAS is an official repository of information that has been revealed on chemical substances.  For the purposes of substance regulation, smo oil has been assigned the EC Number of 618-490-5. Sorbitan ester has the E-494 additive number, which indicates that it may be used in many applications. The identification number that was assigned to it by the CompTox Chemicals Dashboard was DTXSID6027397.


Sorbitan esteris also called sorbitan oleate. Created by combining sorbitan, a type of polyol made from sorbitol, with oleic acid, a monounsaturated fatty acid. The result is a sorbitan ester. Sorbitan oleate is similar to Sorbitan Oleate in that it can help mix and stabilize ingredients.

Span 80 is a type of sorbitan monooleate that is sold under a particular brand name in the commercial market. This means that smo oil is basically the same thing as sorbitan monooleate, which is a particular form of this substance. Many industries use Span 80 because it can help stabilize and emulsify substances. The food industry often uses monostearate sorbitan as an emulsifying agent in ice cream, salad dressings, and baked goods. Span 80 is used in the pharmaceutical and cosmetic sectors to help produce stable emulsions and improve the effectiveness of products.



Technical Information of Sorbitan Monooleate

Sorbitan monooleate is a substance that has many uses in different industries because it can help stabilize and emulsify things. Let’s take a closer look at sorbitan monooleate, also known as Sorbitan Oleate span 80.

Chemical and Physical Properties

Sorbitan monooleate looks like a liquid that ranges from yellow to amber. This visual trait shows how it looks when it’s at room temperature. The temperature at which sorbitan monooleate boils is about 579.3 °C. Sorbitan monooleate synthesis is stable at high temperatures. Has a density is 1.068 g/cm3. smo oil works in formulas well and sorbitan monooleate solubility mixes with other substances in drilling mud fluid.

Sorbitan monooleate is thought to have a molar mass of about 428.61 g/mol. This number tells you how much one mole of the molecule weighs and helps you understand its stoichiometry and do different math. 1.48 n/D is the number used to measure the refractive index of sorbitan monooleate.

The topological polar surface area of Sorbitan Oleate is 96,22. This number shows how many polar or charged areas are on the surface of the sorbitan monooleate molecule, which can change how sorbitan ester reacts with other substances, especially when used as an emulsifier. Sorbitan monooleate has 30 atoms that aren’t hydrogen.

What is sorbitan oleate?

Advantages of Sorbitan Monooleate

Sorbitan monooleate is excellent for stabilizing emulsions because smo oil acts as a buffer between oil and water, preventing their mixture. It maintains the integrity and stability of products over time and prevents the phases from separating. This stability is crucial for ensuring the product’s quality, appearance, and performance.

Sorbitan monooleate is compatible with a variety of substances, including lubricants, water, detergents, and hydrophilic or lipophilic substances. This adaptability enables the formulation of complex mixtures and the addition of multiple active ingredients, resulting in multipurpose products.

Use and Manufacturing

Span 80 sorbitan monooleate is largely used in the capacity of an emulsifier and stabilizer during the manufacturing process of a wide range of goods by a number of different industries. To make sorbitan monooleate, sorbitan, which comes from sorbitol, is esterified with oleic acid. Sorbitan monooleate is the end product. Only Sorbitan Oleate of the highest quality is manufactured at Zhejiang Camp-Shinning.

What are some products that may contain Sorbitan monooleate?

Sorbitan monooleate uses as an emulsifier finds widespread use in a broad range of food preparations. Its role as an emulsifier makes smo oil simpler for the product’s components to be spread equally throughout the product. Lotions and ointments are where this component shines the brightest as a product of its principal use. Monostearate sorbitan helps to stabilize emulsions and makes the administration of active therapeutic substances via the topical route go more smoothly.

Non-cosmetic use Sorbitan Monooleate

One important use for it is in drilling fluids, where it is used as an emulsifier and a stabilizer. Sorbitan monooleate suppliers like Zhejiang Camp-Shinning know that it helps drilling operations go smoothly by preserving stable emulsions, which is a key factor in ensuring that oil extraction procedures are carried out in an efficient and effective manner.


Instructions on Use and Storage

Sorbitan monooleate is often marketed in barrels with a capacity of either 200 kilograms or 1000 kilograms, sometimes known as intermediate bulk containers (IBCs). It is possible to provide various packaging choices upon request in order to cater to certain requirements and demands.

Take into account the parameters of your formulation as you carefully measure out the necessary quantity of Sorbitan Oleate. To determine the appropriate dose or formulation, Zhejiang Camp-Shinning recommends that users either follow the use instructions that are supplied by the company or speak with industry professionals.

Store sorbitan monooleate in an area that is dry and at the same temperature as the surrounding air. Exposure to moisture has the potential to degrade both the product’s quality and its functionality. Ensure that it remains dry at all times is an absolute need. AAvoid exposing the product to excessive amounts of humidity or water since doing so may cause it to agglomerate or degrade. This might have a negative impact on the product’s quality.

UV rays may also cause premature aging of the substance. Put it someplace that is shaded or keep it in containers that are opaque to prevent it from being affected by the light of the sun. Around one year is the typical amount of time that sorbitan monooleate may be stored after it has been manufactured but before it is utilized. smo oil is of the utmost importance to bear in mind, however, that the shelf life is variable and may alter based on the conditions of storage as well as the quality of the packing.

How can you avoid contact with Sorbitan monooleate?

Despite the fact that sorbitan monooleate is generally regarded as non-irritating to the skin and eyes and is not a skin sensitizer,smo oil is recommended to minimize contact and ensure safety. It is recommended to don protective gear when handling sorbitan monooleate.

Create a barrier between the substance and epidermis, eyes, and clothing. PPE aids in minimizing direct contact and reduces the likelihood of adverse effects. Consider using local exhaust ventilation systems or working near open windows or doorways to improve circulation and reduce exposure when working in an enclosed space.

We sincerely look forward to your inquiry about our products and establishing stable and long-term cooperation. We are willing to share our dual advantages of price and quality with you. We believe that we will be your best partner in the market.

When you ask us about the price, we need you to provide us with specific parameters and your application areas. We will also have corresponding professional personnel to connect with you to help you complete your project. We also provide free samples of sorbitan monooleate . For your testing.

Sorbitan Monooleate

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