Methylene Chloride, identified by its CAS number 75-09-2 and chemical formula CH2Cl2, is a volatile, colorless liquid with a distinct, sweet odor. This organic compound is a widely used solvent and is crucial in numerous industrial applications, from chemical synthesis to cleaning processes. For procurement professionals and chemists, a thorough understanding of Methylene Chloride’s properties is key to efficient and safe utilization. This article explores its fundamental characteristics and provides guidance on sourcing reliable supplies.

Key Properties of Methylene Chloride

The primary advantage of Methylene Chloride lies in its potent dissolving capabilities. It is an excellent solvent for a wide range of organic compounds, including resins, waxes, fats, oils, and many plastics. This makes it highly effective in applications requiring the removal of stubborn residues, such as in paint stripping and metal degreasing. Its relatively low boiling point (around 39.6 °C) contributes to its fast evaporation rate, which is beneficial in applications where quick drying is desired, like in certain coating processes or as a processing solvent.

Another significant characteristic is its comparatively lower toxicity profile when contrasted with some other chlorinated hydrocarbons. However, it is still classified as a hazardous substance, and its vapors can be harmful if inhaled in high concentrations, necessitating proper ventilation and protective measures. Its non-flammable nature under normal conditions also adds to its utility in industrial environments where fire safety is a primary concern.

Industrial Applications Driven by its Properties

The unique combination of solvency and volatility makes Methylene Chloride indispensable in several key industries:

  • Pharmaceuticals: Used as a reaction solvent and extraction medium for manufacturing APIs and intermediates.
  • Film Manufacturing: Acts as a solvent for producing safety film, photographic film, and polycarbonate sheets.
  • Industrial Cleaning: Highly effective for degreasing metal parts and stripping paint and coatings.
  • Polyurethane Foam: Functions as a blowing agent and solvent in the production of flexible and rigid foams.
  • Aerosol Propellants: Incorporated into some aerosol formulations.

For businesses looking to buy Methylene Chloride, understanding these applications helps in specifying the required purity and grade.

Sourcing Methylene Chloride from Reputable Suppliers

Securing a consistent supply of high-quality Methylene Chloride is vital for uninterrupted operations. China is a significant producer and exporter of this chemical. When selecting a supplier, it is crucial to look for companies that can provide:

  • High Purity: Typically 99.9% or higher for most industrial uses.
  • Certificates of Analysis (CoA): Detailed reports confirming product specifications like purity, water content, and acidity.
  • Reliable Packaging: Options such as iron drums, ISO tanks, or bulk carriers, ensuring safe transport and storage.
  • Export Experience: Suppliers with a history of exporting can manage logistics and regulatory compliance effectively.
  • Competitive Pricing: Especially for bulk purchases, to ensure cost-effectiveness.

Requesting samples for laboratory testing before placing a large order is a recommended step to verify the product meets your specific quality requirements. Engaging with experienced chemical manufacturers and distributors ensures that you receive not only the product but also the necessary technical support and regulatory information.

In conclusion, Methylene Chloride (CAS 75-09-2) is a highly functional industrial solvent. By understanding its properties and sourcing diligently from reputable manufacturers, businesses can effectively leverage this chemical for a wide array of applications.