CAS: 34590-94-8
Alias: DPM; Di(propylene glycol) methyl ether; Methoxypropoxypropanol
Molecular Formula: C₇H₁₆O₃
Relative Molecular Mass: 148.2
Structural Formula:
1. Product Property
Di-pentanediol monomethyl ether (DPM) is also known as monoethyl ether of 1,2-propanediol. It is a colorless, transparent and viscous liquid with good solubility. It has a pleasant smell. The product is an environmentally friendly alcohol ether solvent with low toxicity, low viscosity, low surface tension, moderate evaporation rate, good solubility, coupling ability, and is completely miscible with water and various organic solvents. It has good compatibility.
2. Quality Standard
| Parameter | Specification |
| Appearance | Clear, colorless liquid |
| Purity (GC area%) | ≥ 99.0% |
| Water content | ≤ 0.1% |
| Acidity (as acetic acid) | ≤ 0.01% |
| Density (20°C) | 0.950–0.960 g/cm³ |
| Refractive index (20°C) | 1.422–1.426 |
| Boiling range | 185–195°C (≥ 95% volume) |
| Residue on evaporation | ≤ 0.01% |
3. Application Scope and Usage
DPM is widely used as a solvent in coatings, dyes, inks, and cleaning agents. It is also a common component in brake fluids and is used in the formulation of cosmetics and personal care products due to its low toxicity and excellent solubility. In the electronics industry, DPM serves as a solvent or intermediate in the production of specialty chemicals. Its ability to dissolve a wide range of resins, including cellulose, polyvinyl acetate, and phenolic resins, makes it valuable in industrial formulations.
4. Package and Storage
DPM is typically packed in 195 kg steel drums, or in IBC totes for bulk quantities. It should be stored in a cool, dry, and well-ventilated area away from direct sunlight, heat sources, and ignition points. Containers must be tightly sealed to prevent moisture absorption and contamination. During handling, avoid contact with skin and eyes, and use appropriate personal protective equipment. Storage areas should be equipped with firefighting facilities, and DPM should be kept away from strong oxidizing agents
