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| Catalog Number | CI-SC-0331 |
| Product Name | PEG-8 Stearate |
| CAS | 9004-99-3 |
| Description | Acts as solid O/W emulsifier (non-ionic). Saponifcaiton value 83-92. |
| Appearance | White solid |
| Application | Emulsions for skin and hair care products |
| Storage | Store light-protected at a cool and dry place |
| HS Code | 3402130000 |
| INCI | PEG-8 stearate |
| Uses | Recommended use level 1-5%. For external use only. |
PEG-8 Stearate is utilized as a versatile, nonionic emulsifier in various formulations, presenting in a solid form derived from the esterification of vegetable oil-based stearic acid with polyethylene glycols having an average molecular weight of 400. When used in a 3% aqueous solution, it exhibits a pH of 6 and possesses an HLB value of 11.5. Particularly effective in nonaqueous systems due to its oil solubility, PEG-8 Stearate is compatible with a wide range of surfactants-including amphoteric, anionic, cationic, and nonionic types-enabling its function as both primary and secondary emulsifiers. Additionally, this ingredient is produced in accordance with the Kosher requirements specified by the Orthodox Union and is marketed under the trade name Lumulse™ 40-S K.
What is PEG-8 Stearate and how is it produced?
PEG-8 Stearate is a nonionic emulsifier in solid form. It is produced through the esterification process, which involves combining vegetable oil-derived stearic acid with polyethylene glycols, which have an average molecular weight of 400.
What are the physical properties of PEG-8 Stearate?
PEG-8 Stearate is a solid with a pH of 6 in a 3% aqueous solution. Its hydrophilic-lipophilic balance (HLB) value is 11.5, which indicates it is moderately hydrophilic and suitable for oil-in-water emulsion formulations.
Is PEG-8 Stearate water-soluble or oil-soluble?
PEG-8 Stearate is primarily oil-soluble and performs well in nonaqueous systems. This property makes it an excellent choice for use in formulations where water-free emulsification is required.
Can PEG-8 Stearate be used with other surfactants?
Yes, PEG-8 Stearate is compatible with a wide range of surfactants, including amphoteric, anionic, cationic, and nonionic surfactants. This compatibility allows for its use as both a primary and secondary emulsifier in various formulations.
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