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Textile Chemistry
Methylene Chloride (Dichloromethane)
Formula:
CH₂Cl₂
GOST/CAS:
CAS 75-09-2
Methylene chloride (dichloromethane) is a clear, highly volatile, colorless liquid with a mild, sweetish odor, recognized as one of the most efficient and versatile organic solvents. Due to its outstanding solvency power, low boiling point, and rapid evaporation rate, this product is indispensable in the textile, chemical, and paint & coating industries, as well as in the production of polymers and polyurethane foams.
Applications
Textile Industry: Extensively used for fabric scouring, textile cleaning, and the effective removal of grease, oils, bitumen, and resin stains during textile finishing and raw material preparation. It also acts as a solvent in spinning fibers (such as cellulose acetate) and in specialized textile dyeing processes.
Foam & PU Production: Serves as a vital blowing agent (gas generator) in the manufacturing of flexible and rigid polyurethane foams (slabstock foam), ensuring the desired density, softness, and uniform cell structure.
Paint and Coating Industry: Functions as the primary active ingredient in heavy-duty paint strippers and varnish removers, formulated to rapidly lift old coatings, powder paints, lacquers, industrial resins, and glues from various substrates.
Chemical Synthesis & Plastic Welding: Used as a reaction medium and extraction solvent in pharmaceuticals, as well as for solvent welding and bonding plastics (including polycarbonates, polystyrene, and ABS), delivering a strong, clean, and seamless joint.
Key Advantages
Exceptional Solvency Power: Dissolves a wide range of organic compounds, resins, fats, oils, plastics, and rubbers quickly and efficiently, without degrading the underlying textile fibers.
High Evaporation Rate: Volatilizes rapidly from the treated surface once its technical function is completed, leaving no residue, staining, or lingering chemical odors on the final product.
Inherent Flame Retardancy: Unlike many common organic solvents (such as acetone or gasoline), methylene chloride is non-flammable under normal conditions. Its vapors do not form explosive mixtures with air at room temperature.
Chemical Stability: Features excellent stability and low viscosity, blending effortlessly with most other organic solvents, which allows for the creation of customized, high-performance blended formulations.
Storage & Transportation
- Store in tightly sealed original packaging in dry, cool, and well-ventilated warehouses, away from heat sources, open flames, and direct sunlight.
- The recommended storage temperature range is from -20°C to +25°C. Prevent container overheating to avoid inner pressure build-up caused by the product’s high volatility.
- Avoid contact with strong alkalis, acids, as well as aluminum, magnesium, and their alloys to prevent hazardous chemical or corrosive reactions.
- Transport is permitted by all modes of covered transport in accordance with regulations for dangerous goods (classified as Class 6.1 — Toxic substances). Shelf life is 1 year from the date of manufacture.
Technical Specifications
Appearance
Clear, colorless, volatile liquid free from suspended matter
Purity (Main substance mass fraction)
≥ 99.9%
Density (at 20°C)
1.324 – 1.328 g/cm³
Boiling Point
39.6°C – 40.2°C
Moisture Content (Water mass fraction)
≤ 0.01%
Acidity (Calculated as HCl)
≤ 0.0004%
Supply info
- Industrial steel drums of 250–270 kg.
- Intermediate Bulk Containers (IBC totes) of 1200–1300 kg.
- Bulk deliveries via road tankers are available for large-volume wholesale orders.