Dimethyl sulfoxide

I. Basic Product Information

• Chemical Name: Dimethyl Sulfoxide (DMSO)
• Molecular Formula: C₂H₆OS, a colorless transparent liquid at room temperature with a slightly bitter taste and strong hygroscopicity.
• Physical Properties:
  • Boiling Point: 189°C (industrial grade purity ≥99%)
  • Melting Point: 18.55°C, Flash Point: 95°C
  • Solubility: Fully miscible with water, ethanol, and other organic solvents, known as the "universal solvent".

II. Core Characteristics

1. High Solubility and Permeability:
   • Extremely strong dissolving capacity for organic compounds and polymer resins (e.g., epoxy resin), capable of rapidly penetrating material structures.
   • Enhances reaction efficiency as a reaction medium, suitable for processes such as aromatic extraction and dye synthesis.
2. Versatile Chemical Properties:
   • Functions as a solvent, reaction reagent, and antifreeze, maintaining fluidity even at -60°C.
   • Low toxicity (LD₅₀ not specified), but high-concentration exposure may cause dizziness or skin irritation.

III. Main Application Areas

1. Chemical and Material Manufacturing

• Polymer Synthesis:
  • Solvent for acrylic fiber spinning, optimizing fiber strength and uniformity.
  • Reaction medium for polyamide resin, improving product purity.
• Coatings/Inks:
  • Efficiently removes epoxy resin paint films; stripping efficiency increases by 40% when alkaline reagents are added.

2. Pharmaceutical Field

• Drug Carrier: Enhances skin penetration of drugs, used in anti-inflammatory and analgesic ointments to accelerate wound healing.
• Synthetic Intermediate: Key solvent for the synthesis of cephalosporin antibiotics, with purity requirements ≥99%.

3. Electronics and Industry

• Electronic Cleaning: Cleaning agent for precision circuit boards, removing residual solder and oxides.
• Pesticide Additive: Acts as a penetrant to enhance the leaf adhesion of insecticides.
• Metal Antifreeze: Component of equipment antifreeze in low-temperature environments.

4. Other Applications

• Textile Printing and Dyeing: Dye solvent, improving dyeing uniformity.
• Research Reagent: Core component of cell cryoprotectants.

IV. Packaging and Safety Regulations

• Industrial Packaging:
  • Blue plastic drums (225kg/drum) or steel drums, designed with leak-proof sealing.
  • Customized packaging available, with direct shipment from stock.
• Safe Operation:
  • Store in a cool, dark place away from fire sources (flash point ≥95°C).
  • Wear protective equipment during operation and avoid prolonged inhalation of vapor.

Note: Industry application data is based on large-scale production practices, and physical properties comply with the national standard GB/T 21395-2008.