Our customer service representatives are available 24 hours a day, from Monday to Sunday.
| Catalog Number | CI-SC-0161 |
| Product Name | Sorbitan Isostearate |
| CAS | 71902-01-7 |
| Structure |  |
| Description | Sorbitan Isostearate is an effective moisturizing and conditioning ingredient used in personal care products like lotions, creams, and makeup. It also has emulsifying properties, meaning it helps to mix oil and water-based ingredients together in a smooth and consistent way. Sorbitan Isostearate has the ability to improve the texture and feel of skin and hair. It typically appears as a yellowish, oily liquid and is used in concentrations of 1-5% in cosmetic formulations. The chemical formula of Sorbitan Isostearate is C24H46O6. |
Sorbitan Isostearate, an ester formed from sorbitan and isostearic acid, serves as a highly effective water-in-oil emulsifier, characterized by its HLB value of 4.7. It is particularly valuable in creating stable emulsions and creams, even at low concentrations starting from 2%. This compound functions efficiently as a co-emulsifier alongside polyoxyethylene sorbitan fatty acid esters, such as polysorbates, especially within oil-in-water systems. Unlike other emulsifiers prone to oxidation, Sorbitan Isostearate maintains its integrity without altering its color or odor, due to its composition of mono and diesters. Its low melting point makes it ideal for use in pourable formulations. Additionally, the superior stability and performance of Sorbitan Isostearate make it especially suitable for use in aerosol systems.
What is Sorbitan Isostearate and what are its primary applications?
Sorbitan Isostearate is an ester derived from sorbitan and isostearic acid, which is a completely saturated branched liquid fatty acid. Its primary usage is as an emulsifier, particularly in water-in-oil emulsions, where it effectively stabilizes mixtures. Due to its low melting point and resistance to oxidation, it is especially beneficial in formulating pourable products, creams, and aerosols.
How does Sorbitan Isostearate differ from similar emulsifiers like Sorbitan Oleate?
While both Sorbitan Isostearate and Sorbitan Oleate are effective emulsifiers, Sorbitan Isostearate may provide enhanced performance and stability in formulations. It's particularly valued for its ability to produce stable emulsions with minimal concentrations, starting at 2%. Additionally, its resistance to oxidation helps maintain the color and odor integrity of the products.
What is the typical concentration of Sorbitan Isostearate used in formulations?
Sorbitan Isostearate is typically used at concentrations as low as 2% in formulations to achieve stable emulsions. This efficiency makes it a cost-effective choice for formulators seeking to create consistent water-in-oil emulsions.
Can Sorbitan Isostearate be used in oil-in-water emulsions?
Yes, while Sorbitan Isostearate is primarily known for water-in-oil emulsions, it can also serve as an efficient co-emulsifier in oil-in-water systems when used in combination with polyoxyethylene sorbitan fatty acid esters, such as polysorbates. This versatility allows for a broad range of applications in different types of formulations.
What are the benefits of using Sorbitan Isostearate in aerosol systems?
Sorbitan Isostearate is ideal for aerosol systems due to its excellent emulsifying properties and low melting point, which ensure smooth formulation and dispensing. Its ability to form stable coarse emulsions aids in delivering consistent product performance in aerosols, maintaining efficacy and ease of application.
Is Sorbitan Isostearate prone to oxidation or changes in color and odor over time?
No, one of the distinct advantages of Sorbitan Isostearate is its resistance to oxidation. This makes it an excellent choice for formulations that require longevity, as it does not easily change color or develop an odor over time, ensuring a consistent product quality throughout its shelf life.
If you have any questions, please contact us. You will get a satisfactory answer.
