Polypropylene Glycol PPG-600, also known as PPG-600, polyoxypropylene glycol, or polypropylene glycol polyether, is a high-molecular-weight polymer formed by the ring-opening polymerization of propylene oxide. It belongs to the category of non-ionic surfactants. The molecular structure contains multiple ether bonds and terminal hydroxyl groups, giving it excellent emulsifying and dispersing properties, wetting and solubilizing capabilities, as well as good chemical stability.
\n\nThis product exhibits excellent resistance to acids, alkalis, and hard water, maintaining stable performance under a wide range of pH conditions and in hard water environments. Additionally, its low volatility and high flash point (>200°C, closed cup) ensure operational safety, making it suitable for high-temperature processes. As a non-ionic product, it has good compatibility with anionic, cationic, and amphoteric surfactants, offering high flexibility for formulation.
\n\nIn terms of safety, PPG-600 is not classified as a hazardous substance. It has low acute oral toxicity (LD₅₀ > 2,000 mg\/kg) and is non-irritating to the skin. It is considered a low-toxicity substance with no significant hazards to human health under normal use conditions.
\n\n| Parameter Item | Parameter Value |
|---|---|
| Product Name | Polypropylene Glycol PPG-600 |
| CAS No. | 25322-69-4 |
| Product Type | Non-ionic Surfactant \/ Polyether Polyol |
| Appearance | Colorless to slightly yellow transparent viscous liquid |
| Ionic Type | Non-ionic |
| Flash Point (Closed Cup) | > 200 °C |
| Acute Toxicity (Oral, Rat) | LD₅₀ > 2,000 mg\/kg |
| Skin Irritation | Non-irritating |
| GHS Classification | Not classified as hazardous substance or mixture |
| Resistance to Acids, Alkalis, and Hard Water | Excellent, stable under wide pH range |
| Recommended Storage Temperature | 5 °C to 40 °C |
Polyurethane Industry: As a core component of polyether polyols, it reacts with isocyanates to form prepolymers, imparting excellent flexibility, resilience, and hydrolysis resistance to the finished products. It is an important synthetic raw material for polyurethane prepolymers and elastomers.
\n\nIndustrial Additives and Functional Fluids: Utilizing its low surface tension and good dispersibility, it can be used as a base component for industrial defoamers (suitable for fermentation, papermaking, coatings, etc.); in mold release agents, it forms an effective separation film for smooth demolding; it can also be used as a plasticizer and softener to increase material flexibility.
\n\nLubricants and Metalworking Fluids: As a synthetic lubricant base oil, it offers excellent lubricity and thermal-oxidative stability; in water-glycol fire-resistant hydraulic fluids, it provides thickening and lubricating effects; in metal cutting fluids and quenchants, it offers good lubrication and cooling performance.
\n\nDaily Chemicals and Pharmaceuticals: It can be used as a solvent, humectant, and skin feel modifier in cosmetics; by further etherification or esterification reactions, it can produce non-ionic surfactants; in the pharmaceutical field, it serves as a water-soluble base material for ointments and suppositories, exhibiting good biocompatibility.
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