What is the formula for dichloromethane?
Uses of Dichloromethane (CH 2 Cl 2)
- Dichloromethane is used as a solvent in food technology.
- It is used in aerosol formulations.
- It is am ethane foam blowing agent.
- Used as a solvent in the manufacturing of pharmaceutical products.
- CH 2 Cl 2 is used as a degreasing agent.
- Used in the manufacturing of electronics.
What are the uses of dichloromethane?
Dichloromethane
- 1 Structures
- 2 Names and Identifiers. ...
- 3 Chemical and Physical Properties. ...
- 4 Spectral Information. ...
- 6 Chemical Vendors
- 7 Food Additives and Ingredients
- 8 Pharmacology and Biochemistry. ...
- 9 Use and Manufacturing. ...
- 10 Identification. ...
- 11 Safety and Hazards. ...
Why is dichloromethane immiscible in water?
Physical and chemical properties of dichloromethane are listed in the following table. Property Information Molecular weight 84.9 Specific gravity 1.3255 20°C/4°C Melting point –95°C Boiling point 39.75°C at 760 mm Hg Log K ow 1.25 Water solubility 13.0 g/L at 25°C Vapor pressure 435 mm Hg at 25°C Vapor density relative to air 2.93 Source: HSDB 2009.
What is the melting point of dichloromethane?
What is the density of dichloromethane in g ml?
| Physical Properties | |
|---|---|
| Refractive index | 1.4241 at 20°C |
| Density | 1.326 g/mL (11.06 lb/gal) at 20°C |
| 1.317 g/mL (10.99 lb/gal) at 25°C | |
| Dielectric constant | 8.93 at 25°C |
What is the density of dichloromethane in kg m3?
| Physical State (20°C) | Liquid |
|---|---|
| Density (kg/m3) | 1322 [Kg/m³] at a temperature of 20°C |
| Kinematic viscosity (cSt) | 0.32 [cSt] at a temperature of 20°C 0.31132 [cSt] at a temperature of 25°C |
| Molar mass (g/mol) | 84.93 |
| Density of gas (kg/m3) | 3.741 |
What is the density of dichloromethane in G cm3?
| Physicochemical Information | |
|---|---|
| Boiling point | 40 °C (1013 hPa) |
| Density | 1.33 g/cm3 (20 °C) |
| Evaporation number | 1.9 |
| Explosion limit | 13 - 22 %(V) |
Is water or dichloromethane more dense?
What does dichloromethane smell like?
How do you make dichloromethane?
Is dichloromethane polar or non polar?
This is not one of the usual scenarios, though. Still, Dichloromethane, also known as Methyl Chloride, develops a net dipole moment across C-Cl and C-H bonds. The chemical bond results in a net 1.67 D dipole moment, thus making it a polar compound.Jul 17, 2021
What is the molar mass of dichloromethane?
Is DCM volatile?
Which is heavier DCM or water?
What is the density of water?
Which is denser between hexane and water?
1. What to Do When We are Exposed to Dichloromethane?
Some of the safety steps which need to be taken if we are exposed to dichloromethane are listed below.Eye Contact - Flush your eyes Immediately wit...
2. Which is More Nonpolar - Hexane or Dichloromethane?
Dichloromethane is more polar, and hexane is more nonpolar.Hexane is one of the hydrocarbons. Hydrocarbons are nonpolar as carbon and hydrogen are...
3. What is the Use of Dichloromethane in Food and Beverage Manufacturing?
It can be used for removing caffeine from tea leaves and roasted coffee beans to make decaffeinated tea and coffee and is also used in processing s...
4. What is the Application of Dichloromethane in the Field of Medicines?
Dichloromethane is used to extract chemicals from food and plants for medicinal purposes such as antibiotics, vitamins, and steroids. Medical equip...
5. How is Dichloromethane Used in the Transportation Industry?
Methylene chloride is also used to de-grease the surfaces and parts of metal such as railroad tracks and equipment and airplane components. The de-...
How is dichloromethane synthesized?
Dichloromethane can be synthesized by treating either methane or chloromethane with chlorine gas at temperatures between 400 and 500° C. They undergo a series of reactions that produce more chlorinated products. Approximately 4.00 000 tons were produced in countries such as Japan, Europe, and the United States in 1993.
What happens when dichloromethane is inhaled?
When dichloromethane has been inhaled and absorbed into the bloodstream, it gives rise to carbon monoxide. This happens because the enzyme Cytochrome P-450 metabolises with DCM, and later the carbon monoxide is formed, and this can lead to carbon monoxide poisoning.
Why is DCM used in coffee extraction?
Because the caffeine is more soluble in DCM (at 140 mg/ml) than it is in water (at 22 mg/ml), DCM became a preferred solvent to use in the caffeine extraction. In coffee, the unroasted beans repeatedly rinse in Dichloromethane after being steamed. The DCM then extracts the caffeine from them before being drained away. This results in flavoursome coffee beans without the kick.
What is dichloromethane used for?
Many of the uses of Dichloromethane are associated with its solvent properties. It serves as a part of paint strippers and varnish strippers in the household. In comparison, DCM is also used in the bathtub refinishing.
What is CH2C12?
What is Dichloromethane CH2C12? Dichloromethane is an organochloride compound having the chemical formula CH2Cl2. It is a colourless, volatile liquid with a moderately sweet aroma, which is a widely used solvent. Although not miscible with water, it is polar and miscible with several organic solvents.
Why is methylene dichloride a volatile liquid?
The Methylene chloride is a colourless liquid that has a sweet, penetrating, and gives ether-like smell. It is a volatile liquid chlorinated hydrocarbon and is non-combustible.
How many tons of chloroform were produced in 1993?
Approximately 4.00 000 tons were produced in countries such as Japan, Europe, and the United States in 1993. This method resulted in a combination of chloromethane, chloroform, carbon tetrachloride, and Dichloromethane. They were further isolated by the distillation process.
Where does dichloromethane come from?
Occurrence. 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.
How many tons of chloroform were produced in 1993?
In this way, an estimated 400,000 tons were produced in the US, Europe, and Japan in 1993. The output of these processes is a mixture of chloromethane, dichloromethane, chloroform, and carbon tetrachloride as well as hydrogen chloride as a byproduct. These compounds are separated by distillation .
How many bathtub refinishers died from DCM?
In February 2013, the U.S. Occupational Safety and Health Administration (OSHA) and the National Institute for Occupational Safety and Health warned that at least 14 bathtub refinishers have died since 2000 from DCM exposure.
What are the consequences of DCM?
More severe consequences can include suffocation, loss of consciousness, coma, and death. DCM is also metabolized by the body to carbon monoxide potentially leading to carbon monoxide poisoning. Acute exposure by inhalation has resulted in optic neuropathy and hepatitis.
How is DCM produced?
DCM is produced by treating either chloromethane or methane with chlorine gas at 400–500 °C. At these temperatures, both methane and chloromethane undergo a series of reactions producing progressively more chlorinated products. In this way, an estimated 400,000 tons were produced in the US, Europe, and Japan in 1993.
What is DCM used for?
DCM is used in the material testing field of civil engineering ; specifically it is used during the testing of bituminous materials as a solvent to separate the binder from the aggregate of an asphalt or macadam to allow the testing of the materials.
What is the name of the compound with the formula C H 2 Cl 2?
Dichloromethane ( DCM or methylene chloride) is an organochloride compound with the formula C H 2 Cl 2. This colorless, volatile liquid with a chloroform -like, sweet odour is widely used as a solvent. Although it is not miscible with water, it is polar, and miscible with many organic solvents.
Overview
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 solvent. Although it is not miscible with water, it is polar, and miscible with many organic solvents.
Occurrence
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.
Production
DCM is produced by treating either chloromethane or methane with chlorine gas at 400–500 °C. At these temperatures, both methane and chloromethane undergo a series of reactions producing progressively more chlorinated products. In this way, an estimated 400,000 tons were produced in the US, Europe, and Japan in 1993.
CH4 + Cl2 → CH3Cl + HCl CH3Cl + Cl2 → CH2Cl2 + HCl CH2Cl2 + Cl2 → CHCl3 + HCl CHCl3 + C…
Uses
DCM's volatility and ability to dissolve a wide range of organic compounds makes it a useful solvent for many chemical processes. In the food industry, it is used to decaffeinate coffee and tea as well as to prepare extracts of hops and other flavourings. Its volatility has led to its use as an aerosol spray propellant and as a blowing agent for polyurethane foams.
Toxicity
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 inhalation include difficulty concentrating, dizziness, fatigue, nausea, headaches, numbness, weakness, and irritation of the upper respiratory tract and eyes. More severe consequences can include suffocation, loss of cons…
Environmental effects
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 and other halogenated very short-lived substances (VSLSs), despite their short atmospheric lifetimes of less than 0.5 year, can contribute to stratospheric oz…
See also
• Chloromethane
• Trichloromethane
• Tetrachloromethane
• List of chemical compounds
• List of organic compounds
External links
• International Chemical Safety Card 0058
• NIOSH Pocket Guide to Chemical Hazards. "#0414". National Institute for Occupational Safety and Health (NIOSH).
• National Pollutant Inventory – Dichloromethane Fact Sheet