What is methylene chloride CAS 75-09-2?
Methylene chloride (dichloromethane, DCM) is a high-purity, fast-evaporating and highly versatile solvent used in industrial applications, chemical synthesis, coatings, adhesives and metal degreasing. Thanks to its low boiling point, excellent solvation properties, and non-flammability, methylene chloride is widely used in paint stripping, resin processing, pharmaceutical manufacturing, and laboratory research.
What is another name for methylene chloride?
The most common and systematic alternative name for methylene chloride is Dichloromethane (DCM).
Synonyms:
- Methylene dichloride
-
MDC
- Methane dichloride
- Methylene bichloride
Properties of methylene chloride CAS 75-09-2
| CAS Number | 75-09-2 |
| Molecular Formula | CH₂Cl₂ |
| Molecular Weight | 84.93 g/mol |
| Appearance | Clear, colorless liquid |
| Odor | Sweet, chloroform-like odor |
| Purity (Typical) | ≥ 99.9% |
| Boiling Point | 39.6°C (103.3°F) |
| Density (at 20°C) | 1.33 g/cm³ |
| Solubility | Slightly soluble in water (~13.2 g/L at 25°C). Fully miscible with most organic solvents (ethanol, acetone, ether). |
| Viscosity | Low (approximately 0.43 mPa·s at 20°C) |
| Flammability / Flash Point | Non-flammable |
| Evaporation Rate | High |
| Vapor Pressure (at 20°C) | 47.3 kPa |
| Dielectric Constant | ~9.1 (indicates a polar aprotic solvent) |
| Biodegradability | Poor to partial; not readily biodegradable, can persist in the environment. |
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