The boiling point of dichloromethane (CAS 75-09-2) is approximately 39.6 °C (103.3 °F) at standard atmospheric pressure (1 atm).
Due to its relatively low boiling point, dichloromethane exhibits high volatility and is widely used as a solvent in chemical synthesis, extraction processes, and chromatographic analysis, readily evaporating at room temperature or slightly above.
| Chemical Name | Dichloromethane/Methylene Chloride |
| CAS Number | 75-09-2 |
| Boiling Point | 39.6 °C |
| Boiling Point (°F) | 103.3 °F |
| Pressure Condition | 1 atm |
Comparison With Other Solvents
| Comparison | |
|---|---|
| Lower than | Acetone (56.3°C), Ethyl Acetate (77.1°C), Ethanol (78.3°C), Benzene (80.1°C), Water (100°C) |
| Similar to | Diethyl ether (34.6°C) |
| Higher than | Some highly volatile, low-molecular-weight compounds |
| Significantly lower than | Chloroform (61.2°C), 1,2-Dichloroethane (83.5°C) |
Related Question
Why does dichloromethane evaporate quickly?
CAS 75-09-2 Dichloromethane (DCM or methylene chloride) evaporates rapidly due to its high volatility, possessing an extremely low boiling point (only 39.6°C) and relatively high vapor pressure (approximately 435 mmHg at 20°C). Based on these physical properties, the substance readily transitions from liquid to gas at room temperature or with minimal heating.
Summary
The boiling point of dichloromethane is approximately 39.6 °C (103.3 °F) at standard atmospheric pressure. It is widely used for extraction, organic synthesis, and laboratory applications where rapid evaporation is beneficial.
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