Melting point: −96.7 °C (−142.1 °F; 176.5 K) Boiling point: 39.6 °C (103.3 °F; 312.8 K) decomposes at 720 °C 39.75 °C (103.55 °F; 312.90 K) at 760 mmHg Meer weergeven Dichloromethane (DCM or methylene chloride, methylene bichloride) is an organochlorine compound with the formula CH2Cl2. This colorless, volatile liquid with a chloroform-like, sweet odour is widely used as a Meer weergeven DCM is produced by treating either chloromethane or methane with chlorine gas at 400–500 °C. At these temperatures, both … Meer weergeven Dichloromethane is widely used as a solvent in part because it is relatively inert. It does participate in reactions with certain strong nucleophiles however. Tert-butyllithium deprotonates DCM: H2CCl2 + RLi → HCCl2Li + RH Methyllithium reacts … Meer weergeven Ozone Dichloromethane is not classified as an ozone-depleting substance by the Montreal Protocol. The U.S. Clean Air Act does not regulate dichloromethane as an ozone depleter. Recent research shows that dichloromethane … Meer weergeven Natural sources of dichloromethane include oceanic sources, macroalgae, wetlands, and volcanoes. However, the majority of dichloromethane in the environment is the result of industrial emissions. Meer weergeven DCM's volatility and ability to dissolve a wide range of organic compounds makes it a useful solvent for many chemical processes. … Meer weergeven Even though DCM is the least toxic of the simple chlorohydrocarbons, it has serious health risks. Its high volatility makes it an acute inhalation hazard. It can also be absorbed through the skin. Symptoms of acute overexposure to dichloromethane via … Meer weergeven http://www.globalchemicalprice.com/usefulsingle/1019
Methylene Chloride (Dichloromethane) - US EPA
Web9.3 Boiling Point at 1 atm: 104°F = 39.8°C = 313.0°K 9.4 Freezing Point: –142°F = –96.7°C = 176.5°K 9.5 Critical Temperature: 473.0°F = 245°C = 518.2°K 9.6 Critical Pressure: … Web8 dec. 2024 · Dichloromethane is a clear, colourless, volatile liquid with a sweet odour. Other common names for dichloromethane are methylene chloride and DCM. Dichloromethane is used as an aerosol solvent, in ... cranio simetrico
Dichloromethane Solvent Properties - LSU
Web3.1.2 Determination of the freezing point depression constant: Weight out approximately 0.50 grams of naphthalene, C10H8, on a small piece of weighing paper. Return the test tube to the hot water bath and once the sample has completely melted, add the naphthalene. Remove the test tube from the hot water bath and repeat the above procedure. WebIn four human subjects exposed to methylene chloride (350 mg/cu m) for 2 hr, an average of 22.6 microg methylene chloride was excreted in the urine within 24 hr after the … WebMethylene chloride is a combustible liquid, but its vapor is flammable only when present in relatively high concentrations (14% to 22% in air). Methylene chloride is absorbed readily … cranio side