Dipropylene Glycol (DPG, CAS 25265-71-8) is a premium, high-purity, colorless, and slightly viscous transparent liquid with remarkable hygroscopic properties. It is practically odorless with a faint sweet taste, and completely miscible with water, ethanol, ether, acetone, and most mainstream organic solvents. As a highly efficient polyol derivative, DPG possesses a very low volatility, elevated boiling point, and superb coupling and dissolving co-efficiency. In the personal care and flavor & fragrance industry, our low-odor fragrance-grade DPG (DPG LO+) stands out as a critical carrier and fixative. Concurrently, in industrial manufacturing, it serves as an essential chemical intermediate for synthesizing unsaturated polyester resins, polyurethane compounds, advanced plasticizers, industrial coatings, and functional process fluids.
Technical Specifications & Physical Properties
| Analysis Item | Specification | Typical Result | Test Method |
| Appearance | Colorless clear liquid | Conforms | Visual |
| DPG Content (%) | ≥ 99.5% | 99.85% | GC |
| Moisture (%) | ≤ 0.1% | 0.02% | 卡尔费休法 |
| Odor | Practically odorless | Passed | Olfactory |
| Color (Pt-Co) | ≤ 10 | 5 | ASTM D1209 |
| Density (20℃, g/cm³) | 1.020 - 1.026 | 1.023 | ASTM D4052 |
| Distillation Range (℃) | 228.0 - 236.0 | 230.5 - 233.0 | ASTM D1078 |
Core Applications
Premium Flavors, Fragrances & Personal Care: Serves as an excellent liquid carrier, diluent, and stabilizer fixative in fine perfumes, colognes, air care plug-ins, and skincare lotions due to its ultra-low odor trace that never distorts delicate scent profiles.
Synthetic Resins & Polyurethane Chemistry: Heavily integrated into processing unsaturated polyester resins (UPR), alkyd lacquers, and aqueous polyurethane compounds to boost water resistance, tensile flexibility, and impact endurance of polymer chains.
Advanced Industrial Coatings & Inks: Operates as an effective coupling co-solvent and coalescing aid in specialty printing inks, waterborne paints, textile lubricants, and industrial adhesives to optimize fluid rheology.
Functional Fluids & Extraction Agents: Applied as a premium blending component in premium hydraulic fluids, brake fluid bases, metalworking coolants, or utilized as a highly selective extraction solvent in petrochemical aromatics separation.
Packaging & Storage
Packing: Shipped in standard 215 KGS net weight iron or HDPE plastic drums. For industrial-scale international trade, 1000 KGS IBC tote tanks or global ISO TANK logistics are fully equipped.
Storage: Classified as a non-hazardous fluid but highly hygroscopic. Store inside a dry, cool, and well-ventilated sheltered chemical warehouse below 30°C. Keep far away from flames, sparks, and intense direct sunlight. Ensure all closures are perfectly sealed and store isolated from powerful oxidizers and acids.
关键字： Dipropylene Glycol;DPG;二丙二醇;25265-71-8;Oxydipropanol;
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