CAS · 75-09-2
Product Overview
Dichloromethane is a high-purity solvents supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.
Product Specifications
| Grade: | HPLC Grade |
|---|---|
| Assay CH2Cl2 (by GC), ω: | 99.8% min |
| Chromaticity: | 10 APHA max |
| Density (20℃), ρ: | 1.320~1.330 g/mL |
| Residue on evaporation, ω: | 0.0005% max |
| Water H2O (by K-F), ω: | 0.02% max |
| Titrable Acid (H+), b: | 0.0003% max |
| UV Absorbance (1cm cell vs. water) at 235 nm: | 1.00 max |
| UV Absorbance at 240 nm: | 0.20 max |
| UV Absorbance at 250 nm: | 0.05 max |
| UV Absorbance at 260 nm: | 0.02 max |
| UV Absorbance at 340 nm: | 0.01 max |
Applications
1. Solvent in Organic Chemistry
A. Chemical Synthesis
● Dichloromethane is widely used as a solvent in organic reactions, including nucleophilic substitutions, elimination reactions, and polymerizations. Its polarity and relatively low boiling point make it suitable for a wide range of reactions.
B. Extraction Processes
● It is used in liquid-liquid extraction to separate organic compounds from aqueous solutions, due to its ability to dissolve a broad range of organic compounds. It is commonly used in the pharmaceutical and chemical industries to isolate active ingredients from plant extracts or to purify chemicals.
C. Cleaning Agent
● Dichloromethane is an effective cleaning agent for laboratory glassware and equipment, as it can remove grease, resins, and organic contaminants without leaving residues. It is also used in the cleaning of metal parts and electronics.
2. Pharmaceutical and Drug Manufacturing
A. Solvent for Drug Formulations
● DCM is used as a solvent in the formulation of drugs and pharmaceuticals, including the preparation of liposomal formulations, microparticles, and other drug delivery systems. It is also employed in the extraction of active pharmaceutical ingredients (APIs) from natural products.
B. Intermediate in Pharmaceutical Synthesis
● Dichloromethane is used as a reactive medium in the synthesis of several pharmaceutical compounds, where it facilitates specific chemical reactions due to its solvency properties.
3. Paints, Coatings, and Adhesives
● Paint Remover: Dichloromethane丨CAS 75-09-2 is commonly found in paint removers and strippers, where it dissolves paint, varnish, and other coatings.
● Solvent in Paints and Coatings: It is also used as a solvent in paint formulations and adhesives due to its ability to dissolve resins, waxes, and other components in paint products.
4. Aerosol Products
● Propellant in Aerosols: Dichloromethane is often used as a propellant in aerosol formulations, including spray paints, cleaning sprays, and degreasers. Its volatility allows for the rapid dispersion of the product when sprayed.
5. Food and Beverage Industry
● Decaffeination Process: Dichloromethane has been used as a solvent in the decaffeination process of coffee and tea. It selectively extracts caffeine from the coffee beans without affecting the flavor profile, although this practice has become less common due to health and safety concerns.
6. Analytical Chemistry
A. Extraction in Analytical Techniques
● DCM is often used in sample preparation in analytical chemistry, particularly in liquid-liquid extraction and solid-phase extraction (SPE). It can extract organic compounds from complex mixtures, such as biological samples, for further analysis.
B. Chromatography
● It is used as a solvent in chromatographic techniques, including thin-layer chromatography (TLC) and gas chromatography (GC), for separating and analyzing a wide variety of organic substances.
Benefits
1. Versatile Solvent
● One of DCM's key benefits is its ability to dissolve a wide range of organic compounds, making it an extremely versatile solvent in laboratories and industries that require a nonpolar and polar solvent for different applications.
2. Efficient Extraction
● Dichloromethane丨CAS 75-09-2 is particularly effective for extracting organic compounds from natural sources or mixtures, enabling the purification of bioactive molecules and the isolation of pharmaceutical agents.
3. Volatility and Low Boiling Point
● DCM has a low boiling point (39.6°C), which makes it an excellent choice for processes requiring rapid evaporation or easy removal after extraction, leaving minimal residue behind.
4. Cleaning and Degreasing Properties
● The compound's ability to dissolve oils, grease, and resins makes it highly useful in the cleaning and degreasing of industrial and laboratory equipment without leaving undesirable residue.
5. Applicability in Industrial Manufacturing
● Dichloromethane plays a significant role in the manufacturing of paints, coatings, and adhesives, where it enhances the viscosity and spreadability of the products, making them easier to apply and ensuring high performance.
Conclusion
Dichloromethane丨CAS 75-09-2 is a widely used solvent in organic chemistry, pharmaceutical manufacturing, paint removal, and aerosol products. Its properties as a polar solvent, efficient extractor, and cleaning agent make it valuable across numerous industries. While it offers significant benefits in terms of efficiency and versatility, safety precautions are necessary due to its toxicity and potential carcinogenic effects. The compound's broad applicability, from chemical synthesis to analytical applications, makes it a fundamental tool in scientific research and industrial processes.
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Conclusion
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