Polyethylene Glycol Distearate 400DS (CAS: 9005-08-7) is prepared by esterifying polyethylene glycol 400 with stearic acid, appearing as a white to slightly yellow waxy solid. As a nonionic surfactant, its molecular structure contains no ionic groups, thus possessing extremely excellent chemical compatibility—it can be stably compounded with anionic, cationic, and amphoteric surfactants without causing antagonism or precipitation, which is particularly critical in complex industrial formulations.
The core value of this product lies in its "multi-purpose" functional integration: it is both an efficient oil-in-water (O/W) emulsifier that significantly reduces the oil/water interfacial tension, giving the emulsion a fine and uniform texture; and it is an excellent dispersing and suspending agent that effectively prevents the settling and agglomeration of solid particles and pigments, ensuring long-term uniformity of the system; while also providing thickening and stabilizing functions, improving the rheological properties and shelf stability of the final product.
From a safety and environmental perspective, under normal use conditions, this product is mild to the skin without significant irritation. Its oral and dermal median lethal dose (LD50) is greater than 2000 mg/kg, not classified as acutely toxic. Additionally, it is readily biodegradable, meeting OECD 301 series standards for ready biodegradability, with a low octanol/water partition coefficient, no bioaccumulation potential, aligning with the direction of green chemistry development.
| Performance Indicator | Description of Characteristics |
|---|---|
| Product Type | Nonionic surfactant |
| Appearance | White to slightly yellow waxy solid |
| Emulsification Type | Oil-in-water (O/W) |
| Ionic Compatibility | Can be compounded with anionic, cationic, and amphoteric systems |
| pH Adaptability | Stable performance over a wide pH range |
| Hard Water Stability | Excellent, no precipitation or deactivation |
| Skin Irritation | Mild and low irritation |
| Acute Toxicity (Oral LD50) | Greater than 2000 mg/kg |
| Biodegradability | Readily biodegradable (meets OECD 301 standards) |
| Bioaccumulation Potential | Low (low log Pow) |
According to Guoli Chemical product data, Polyethylene Glycol Distearate 400DS performs outstandingly in the following five areas: