CAS No 75-09-2 Dichloromethane (DCM), also known as methylene chloride, is a volatile, non-flammable organic solvent widely used in chemical synthesis due to its ability to dissolve a broad range of organic compounds, low boiling point, and stability.
Dichloromethane (DCM) Specifications Table
| Property | Details |
|---|---|
| CAS Number | 75-09-2 |
| Chemical Name | Methylene Chloride (Dichloromethane) |
| Molecular Formula | CH2Cl2 |
| Appearance | Clear, colorless liquid |
| Odor | > Pleasant, mild, ether-like |
| Molecular Weight | 84.93 g/mol |
| Boiling Point | 39.6–40.0 °C |
| Melting Point | −96.7 °C |
| Density (20 °C) | 1.325–1.330 g/cm³ |
| Refractive Index (20 °C | 1.4240–1.4250 |
| Vapor Pressure (20 °C) | ~350–390 mmHg |
| Flash Point | Non-flammable |
| Water Solubility (20 °C) | .3 g/L (sparingly soluble) |
| Purity (%) | ≥99.8 % |
| Main Impurities | Methanol, chloromethane, trichloromethane |
| Typical Color | ASTM ≤2.0 |
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What is dichloromethane DCM (CAS 75-09-2) used for in chemistry?
1. Organic Reaction Solvent
Dichloromethane (DCM) is commonly used as a reaction medium in organic synthesis. It can dissolve a wide variety of organic compounds and is chemically stable under various reaction conditions.
Applications:
- Pharmaceutical intermediate synthesis
- Polymer chemistry
- Fine chemical production
2. Extraction Solvent (Liquid-Liquid Extraction)
One of the most important uses of methylene chloride (DCM) is liquid-liquid extraction. Because it is insoluble in water and has a higher density than water (forming a bottom layer), it is ideal for extracting organic compounds.
Applications:
- Alkaloid extraction
- Natural product separation
- Active drug purification
3. Paint Removal and Cleaning (Industrial Chemistry)
Beyond laboratory chemistry, dichloromethane is also widely used in:
- Paint strippers
- Adhesive removers
- Metal degreasing
This is because dichloromethane chemical has a strong dissolving ability for resins, oils, and coatings.
4. Pharmaceutical Applications
In the pharmaceutical industry, dichloromethane (CAS 75-09-2) is used for drug extraction, processing of active pharmaceutical ingredients and intermediates, and as a solvent in synthetic reactions.
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People Also Ask：
Why is dichloromethane a good solvent for extraction?
CAS 75-09-2 Dichloromethane (DCM), also known as methylene chloride, is a good solvent for extraction processes due to its unique properties. It is a polar, aprotic solvent, which means it has a significant dipole moment but does not have any hydrogen atoms that can participate in hydrogen bonding. This allows DCM to dissolve a wide range of polar and nonpolar compounds, making it very versatile in extraction processes.
What kind of solvent is DCM?
Dichloromethane (DCM), also commonly known as methylene chloride, is a polar, aprotic, chlorinated organic solvent. It is a colorless, highly volatile liquid with a sweet, chloroform-like odor.
What is a good substitute for DCM?
Ethyl acetate, acetonitrile, and toluene are reasonable alternative solvents to consider for reactions that typically employ DCM.
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|---|---|
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| IBC Tank | 1250 kg |
| ISO Tank | Bulk shipment |
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