According to technical data from Guoli Chemical, the core advantage of polyethylene glycol PEG-200 lies in its identity as a non-ionic surfactant that combines **multifunctionality, high chemical inertness, and excellent safety**. Compared to other similar products, it does not merely serve as a single-function additive but can play multiple roles such as solubilizer, humectant, lubricant, dispersant, and synthetic intermediate.
Its specific advantages are mainly reflected in the following aspects:
- **Excellent emulsification and solubilization**
PEG-200 can effectively reduce the interfacial tension between different liquid phases, promoting the stable dissolution and uniform mixing of difficult-to-dissolve substances. For example, in liquid preparations, flavors and fragrances, and ink coating systems, it significantly improves component compatibility and stability, making it an ideal high-efficiency co-solvent.
- **Excellent wetting and dispersing functions**
This product can significantly improve the wetting state of solid particles in liquid media, preventing sedimentation and flocculation. In the fields of dyes, pigments, and ceramic processing, it ensures a high degree of formulation uniformity.
- **Superior chemical stability and compatibility**
PEG-200 is resistant to acids, alkalis, and hard water, and hardly reacts with most chemicals under a wide range of working conditions, ensuring reliable system performance. More importantly, it has good compatibility with anionic, cationic, and other non-ionic surfactants, providing great formulation flexibility as a core compounding agent.
- **Extremely high application safety**
As a leader among similar products, the safety of PEG-200 has been fully verified. Its toxicological data shows that **the oral median lethal dose (LD50) in rats is greater than 2000 mg/kg, indicating low toxicity; the skin irritation index is 0 to 0.5, meaning no or very slight irritation; and it is non-sensitizing and non-genotoxic.** Additionally, it has low ecotoxicity and is easily biodegradable, meeting increasingly stringent environmental regulations and the strict requirements of the personal care industry for mild, low-irritation raw materials.
- **Key value as a synthetic intermediate**
With flexible ethoxy chains in its molecular segments, PEG-200 is not only a physical additive but also an important chemical synthetic intermediate that can participate in esterification, etherification, and other reactions to produce specialty surfactants, polyurethane resins, and plasticizers. This advantage is not possessed by many similar products that only have single physical functions.
Below are its main technical parameters and application guidelines:
| Item | Specification and Description |
| :--- | :--- |
| **Product Name** | Polyethylene Glycol PEG-200 |
| **CAS No.** | 25322-68-3 |
| **Type** | Non-ionic Surfactant |
| **Appearance** | Colorless transparent viscous liquid |
| **Core Characteristics** | Solubilization, emulsification, dispersion, moisture retention, chemical inertness, safe and low irritation |
| **Acute Toxicity** | Low toxicity, LD50 (rat oral) > 2000 mg/kg |
**Application Recommendations**
Based on the performance advantages of PEG-200, it can be the preferred choice in the following fields:
- **Daily chemical care**: As a humectant and lubricant, its low irritation makes it particularly suitable for use in shampoos, body washes, creams, and serums.
- **Pharmaceutical industry**: With its high safety and solubility-enhancing properties, it can be used as an ointment base or drug solubilizer.
- **Industrial applications**: In metalworking and casting, its chemical stability and lubricity are core advantages as a key component in high-temperature mold release agents.
When using or storing, it is recommended to keep the container sealed in a cool, dry place (**recommended temperature 15-30°C**), and avoid coexistence with strong oxidants to prevent moisture absorption.
