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Methylene Chloride

Methylene Chloride

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Chemical & Physical Properties:

  • Product Name: Methylene Chloride
  • Other Name: Dichloromethane
  • CAS No.: 75-09-2
  • UN No.: 1593
  • EINECS No.: 200-838-9
  • Purity: 99.99% min
  • Molecular Weight: 84.93
  • Class: 6.1
  • Chemical Formula: CH2Cl2
  • Appearance: Colorless clear liquid with an aromatic odor
  • Melting point:-97 °C
  • Boiling point:39.8-40 °C mm Hg(lit.)
  • Density:1.325 g/mL at 25 °C(lit.)
  • Vapor density:2.9 (vs air)
  • Vapor pressure:24.45 psi ( 55 °C)
  • Refractive index:n20/D 1.424(lit.)
  • Flash point:39-40°C
  • Storage temp.: room temp
  • Solubility: Miscible in ethyl acetate, alcohol, hexanes, methanol, diethyl ether, n-octanol, acetone benzene, carbon tetrachloride, diethyl ether, and chloroform.
  • Form: Liquid
  • Color APHA: ≤10
  • Specific Gravity:1.329 (20/20℃)
  • Odor: Odor threshold 160 to 230 ppm
  • Odor Threshold:160ppm
  • Explosive limit:13-22%(V)
  • Evaporation Rate: 0.71
  • Water Solubility:20 g/L (20 ºC)

Description

Application:

House Hold Uses The compound is used in bathtub refurbishing. Dichloromethane is highly used industrially in the production of pharmaceuticals, strippers, and process solvents. Industrial and Manufacturing Uses DCM is a solvent that is found in varnish and paint strippers, which are often used to remove varnish or paint coatings from various surfaces. As a solvent in the pharmaceutical industry, DCM is used for the preparation of cephalosporin and ampicillin. Food and Beverage Manufacturing It is also used in manufacturing beverage and food manufacturing as an extraction solvent. For instance, DCM can be used to decaffeinate unroasted coffee beans as well as tea leaves. The compound is also used in creating hops extract for beer, beverages and other flavoring for foods, as well as in processing spices. Transportation Industry DCM is normally used in the degreasing of metal parts and surfaces, such as railroad equipment and tracks as well as airplane components. It can also be used in degreasing and lubricating products utilized in automotive products, for instance, removal of the gasket and for preparing metal parts for a new gasket. Experts in automotive commonly use vapor dichloromethane degreasing process for the removal of grease and oils from car parts of car transistors, spacecraft assemblies, aircraft components, and diesel motors. Today, specialists are able to safely and quickly clean transportation systems using degreasing techniques that depend on methylene chloride. Medical Industry Dichloromethane is used in laboratories in the extraction of chemicals from foods or plants for medicines such as antibiotics, steroids, and vitamins. In addition, medical equipment can be efficiently and quickly cleaned using dichloromethane cleaners while avoiding damage to heat-sensitive parts and corrosion problems. Photographic Films Methylene chloride is used as a solvent in the production of cellulose triacetate (CTA), which is applied in the creation of safety films in photography. When dissolved in DCM, CTA begins to evaporate as the fiber of acetate remains behind. Electronic Industry Methylene chloride is used in the production of printed circuit boards in the electronic industry. DCM is utilized to decrease the foil surface of the substrate before the photoresist layer is added to the board.

Package:

  • 250kg *80 iron drums,20ton/FCL;
  • 270kg*80 iron drums,21.6ton/FCL;

Hazards & Safety Information:

  • Toxicity grade: WHO Class II
  • Acute toxicity:acute peroral LD50 in rats 1600 mg/kg; mouse intraperitoneal LD50: 437 mg/kg
  • Physiological stimulation:skin-rabbit 810  mg/24hours Severe; eyes-rabbit 500 mg/24hours Mild
  • Explosive hazard characteristics: Explosive when mixed with air or oxygen
  • Combustible hazard characteristics: It releases phosgene when heated. Its vapor  is non-flammable
  • Transportation and storing characteristics: In a ventilated dry storeroom at low temperature, kept apart from oxidizing agents and nitric acid
  • Extinguishant: Foam extinguisher, carbon dioxide, sprayed water, yellow sand.
  • Professional standard: TWA 350 mg/m3; STEL 879 mg/m3.

Specification:

Product Name Methylene Chloride 99.97% min
Inspection Standard GB/T4117-2008
Inspection Item Measurement Units Qualified Result Inspection Result
Appearance Colorless and clear liquid Colorless and clear liquid
Purity 99. 95% 99.97%
Relative Density 20℃ (g/cm³) - 1.31-1.33 1.325
Chroma (APHA) 10 5
Moisture 0.015% 0.010%
Acidity (as HCL) 0.0004% 0.0004%
Residue on evaporation 0.0015% 0.0015%
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