Polyoxyl 40 stearate is an ester compound synthesized from stearic acid (octadecanoic acid), with its molecular structure containing 8 to 40 ethylene oxide repeating units.
It is a multi-functional additive extensively adopted within cosmetic and personal care manufacturing sectors, categorized as a nonionic surfactant and high-performance emulsifier.
Its core functional advantage lies in its remarkable emulsion-stabilizing capability, which effectively locks the uniform oil-water blend in creams, body lotions and a full range of daily care formulations to avoid layering and texture breakdown.
Dual-functional as a surface active agent and emulsifier, this raw material also serves as a key additive for food manufacturing. In food formulas, it delivers excellent dispersing performance to evenly distribute all solid and liquid components throughout the system.
From a chemical structural perspective, this substance falls under the classification of hydroxypolyethers. Thanks to this unique molecular structure, it possesses outstanding multi-scene adaptability, and can exert stable effects in cosmetic formulas as well as various industrial production processes.
Parameters
| Melting point | 55-60 °C |
| Boiling point | 149 °C |
| density | 0.8780 |
| refractive index | 1.4310 (estimate) |
| Fp | 425 |
| storage temp. | 2-8°C |
| solubility | Chloroform (Slightly), Methanol (Slightly, Heated) |
| pka | 13.90±0.10(Predicted) |
| form | Flakes |
| color | White to pale yellow |
| Odor | at 100.00?%. mild waxy |
| Stability: | Stable under normal conditions., Stable Under Normal Conditions. |
| LogP | 7.629 (est) |
| CAS DataBase Reference | 111-60-4(CAS DataBase Reference) |
| EPA Substance Registry System | Ethylene glycol monostearate (111-60-4) |
EGMS is a stearate ester nonionic surfactant made from ethylene glycol and stearic acid. It is famous for its strong pearlescent and thickening effects.
It is widely added into shampoo, shower gel and other personal care formulas to create beautiful pearlescent shine and stabilize product texture. It mixes well with most cosmetic raw materials and maintains stable performance during storage, and can also be used as industrial lubricant and dispersant.
Safety Information
| Hazard Codes | T |
| Risk Statements | 60-22-36/37/38-63 |
| Safety Statements | 24/25-45-36/37/39-28-27-26-53 |
| RTECS | WI4100000 |
| TSCA | TSCA listed |
| HS Code | 29189900 |
