【CAS】75-09-2
Alias: DCM
Molecular formula: CH2Cl2 Relative molecular mass: 84.93
Structural formula:
1.Product Property
Dichloromethane is a compound formed by replacing the two hydrogen atoms in a methane molecule with chlorine. It is a colorless, transparent, heavier-than-water liquid with an ether-like odor and a sweet taste. It does not burn. Dichloromethane is slightly soluble in water and is miscible with most commonly used organic solvents. It can also be mixed in any proportion with other chlorine-containing solvents, ethyl ether, ethanol, and N,N-dimethylformamide.
2.
| Parameter | Specification |
| Appearance | Clear, colorless liquid, free of particles |
| Purity (GC, % wt.) | ≥ 99.9% |
| Water content | ≤ 0.01% (100 ppm) |
| Acidity (as HCl) | ≤ 0.0005% (5 ppm) |
| Density (20°C, g/cm³) | 1.322 – 1.327 |
| Refractive Index (nD²⁰) | 1.423 – 1.425 |
| Stabilizer (Amylene) | 50 – 200 ppm (if stabilized) |
3.Application scope and Usage
Used for grain fumigation and low-pressure refrigeration units as well as air conditioning devices.
Used as a solvent, an extractant, and a mutagen.
Used in the electronics industry. It is commonly used as a cleaning and oil-removing agent.
Used as a local anesthetic for dentistry, a refrigerant, a fire extinguishing agent, and a cleaning and degreasing agent for metal surface paint layers, as well as a descaling and demolding agent.
Used as an intermediate in organic synthesis.
4.Package and Storage
Packaged in galvanized iron drums in a sealed manner, each drum contains 250kg. It should be stored in a cool, dark, dry and well-ventilated place. Pay attention to moisture prevention.
