Dichloromethane [Organic Chemicals - Hydrocarbons - Alkanes]
I. Basic Information
1. Purity: Generally, the premium grade has a purity above 99.9%, but Shandong Dongyue's premium grade has a purity of 99.5%.
2. Packaging: 250kg/drum, packaged in iron drums.
3. Appearance and Properties: Dichloromethane is a colorless, transparent, volatile liquid with an ether-like pungent odor and a sweet taste. It is slightly soluble in water and soluble in ethanol. It is a non-flammable, low-boiling-point solvent, often used as a substitute for flammable solvents.
4. Hazard Classification: Class 6.1 hazardous material.
II. Upstream and Downstream Products
Upstream: Methanol
Downstream: Can be used to produce pharmaceuticals, such as amoxicillin.

IV. Main Uses
1. The primary use of dichloromethane is as a solvent. Its strong solvency, low boiling point, relatively low toxicity, and chemical inertness make it the most frequently used organic solvent in organic synthesis.
2. Dichloromethane has the advantages of strong solvency and low toxicity.
3. In the pharmaceutical industry, dichloromethane is used as a reaction medium.
4. Extraction solvent.
5. Cleaning, degreasing, and stripping agent for metal surface coatings.
6. In China, dichloromethane is mainly used in film production and the pharmaceutical industry. Film production accounts for 50% of total consumption, while the pharmaceutical industry accounts for 20%.
For customers in cleaning, pharmaceuticals, and electronics, Jiangsu Meilan's dichloromethane must be used. For customers in degradable plastics, Jinling's product is sufficient.
Jiangsu Meilan's dichloromethane is produced from natural gas-based methanol, while Jinling's is produced from coal-based methanol.

V. Manufacturers
Domestic manufacturers of dichloromethane include: Shandong Jinling, Shandong Luxi, Jiangsu Meilan, Shandong Dongyue, Zhejiang Juhua, Chongqing Tianyuan, Jiangsu Liwen, etc. Shandong Dongyue's dichloromethane is generally for internal use.
Shandong Dongyue's premium-grade dichloromethane has a purity of 99.5%, while other manufacturers typically have a purity of around 99.9%.