Products
Dichloromethane-Fine chemicals
Product Description
Dichloromethane, dichloromethane, molecular formula CH2Cl2, molecular weight 84.93, CAS: 75-09-2. Colorless transparent liquid with pungent odor similar to ether. Slightly soluble in water, soluble in ethanol and ether. It is a non-flammable low-boiling solvent, often used to replace flammable petroleum ether, ether, etc.
Product Index
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High-class product |
First-class product |
Qualified product |
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Appearance |
colorless, clear, no suspended matter |
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Dichloromethane，ω/％ ≥ |
99.90 |
99.50 |
99.20 |
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Moisture，ω/% ≤ |
0.0100 |
0.0200 |
0.0300 |
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Acidity (calculated as HCl)，ω/% ≤ |
0.0004 |
0.0004 |
0.0008 |
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Evaporation residue，ω/% ≤ |
0.0005 |
0.0005 |
0.0010 |
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Chromaticity/Hazen unit (platinum-cobalt color number) ≤ |
10 |
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Product use
Dichloromethane has the advantages of strong solubility and low toxicity. It is widely used in the manufacture of safety film and polycarbonate, and the rest is used as coating solvent, metal degreasing agent, aerosol spraying agent, polyurethane foaming agent, mold release agent, and release agent. Lacquer.
Dichloromethane is a colorless liquid. It is used as a reaction medium in the pharmaceutical industry to prepare ampicillin, ampicillin, cephalosporin, etc.; it is also used as a solvent in film production, petroleum dewaxing solvent, aerosol propellant, Organic synthetic extractant, foaming agent for the production of foam plastics such as polyurethane, and metal cleaning agent, etc.
Storage precautions
Airtight packaging in galvanized iron drums, 250kg per drum. Store in a cool, ventilated warehouse for poisonous gases. Keep away from fire and heat sources. The storage temperature should not exceed 30°C. should be kept away from oxidizer, do not store together. Use explosion-proof lighting and ventilation facilities. It is forbidden to use mechanical equipment and tools that are prone to sparks. The storage area should be equipped with leakage emergency treatment equipment.
