Dichloromethane
Also known as Methylene chloride, Methylene dichloride, Methane, dichloro-
Key facts
What buyers check first
- Appearance
- Colorless liquid [Note: A gas above 104 degrees F]
- Melting point
- -95 °C
- Boiling point
- 39.8 °C
- Density
- Relative density (water = 1): 1.3 (20 °C)
- Solubility
- In water, 13,200 mg/L at 25 °C
- HS code
- 290312
- Category
- Refrigerants and blowing agents
- UN number
- UN 1593
What is Dichloromethane?
Plain description, key identifiers and synonyms
Dichloromethane is a member of the class of chloromethanes that is methane in which two of the hydrogens have been replaced by chlorine. A dense, non-flammible colourless liquid at room temperature (b.p. 40C, d = 1.33) which is immiscible with water, it is widely used as a solvent, a paint stripper, and for the removal of caffeine from coffee and tea. It has a role as a polar aprotic solvent, a carcinogenic agent and a refrigerant. It is a volatile organic compound and a member of chloromethanes.
Identifiers
Registry numbers, names and line notations, tap to copy
- IUPAC name
- dichloromethane
- CAS number
- 75-09-2 CAS number cross-checkedOther or deprecated CAS: 1605-72-7
- EC number
- 200-838-9
- Molecular formula
- CH2Cl2
- UNII
- 588X2YUY0A
- MDL number
- MFCD00000881
- InChIKey
- YMWUJEATGCHHMB-UHFFFAOYSA-N
- InChI
- InChI=1S/CH2Cl2/c2-1-3/h1H2
- SMILES (canonical and isomeric)
- C(Cl)Cl
Synonyms
- Methylene chloride
- Methylene dichloride
- Methane, dichloro-
- Methylene bichloride
- Methane dichloride
- Solaesthin
- Solmethine
- Narkotil
- Aerothene MM
- Freon 30
- Metylenu chlorek
- Chlorure de methylene
- Metaclen
- CH2Cl2
- Soleana VDA
- Khladon 30
- F 30 (chlorocarbon)
- Methylenum chloratum
- R30 (refrigerant)
- RCRA waste number U080
- HCC 30
- Chloride, Methylene
- Bichloride, Methylene
- Dichloride, Methylene
- UN 1593
Show all 37 synonymsShow fewer synonyms
- dichloromethane, methylene chloride
- Dichlormethan
- dichloro-methane
- dichlormethane
- Methoklone
- Salesthin
- dichloro methane
- Chlorodorm D
- Dichloromethane, nf
- Dichloromethane, acs
- Dichloromethane, HPLC Grade
- Dichloromethane (Methylenechloride)
Physical and chemical properties
Measured values and descriptors computed from the structure
Physical and chemical properties
Measured values, check the supplier specification for your grade
| Appearance | Colorless liquid [Note: A gas above 104 degrees F]exp.Measured value |
|---|---|
| Odour | Sweet, pleasant odor, like chloroformexp.Measured value |
| Melting point | -95 °Cexp.Measured value |
| Boiling point | 39.8 °Cexp.Measured value |
| Density | Relative density (water = 1): 1.3 (20 °C)exp.Measured value |
| Autoignition temperature | 556 °Cexp.Measured value |
| Solubility | In water, 13,200 mg/L at 25 °Cexp.Measured value |
| Vapour pressure | 435 mm Hg at 25 °Cexp.Measured value |
Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.
Computed descriptors
Calculated from the structure, useful for screening and formulation
| Molecular weight | 84.93 g/molcalc.Computed value |
|---|---|
| Exact mass | 83.9534 Dacalc.Computed value |
| LogP (octanol/water) | 1.42calc.Computed value |
| Topological polar surface area | 0 Ųcalc.Computed value |
| Hydrogen bond donors | 0calc.Computed value |
| Hydrogen bond acceptors | 0calc.Computed value |
| Rotatable bonds | 0calc.Computed value |
| Heavy atoms | 3calc.Computed value |
| Rings | 0calc.Computed value |
| Aromatic rings | 0calc.Computed value |
| Fraction sp3 carbons | 1calc.Computed value |
| Formal charge | 0calc.Computed value |
| Stereocentres | 0calc.Computed value |
| Lipinski rule of five | Passes (0 violations)calc.Computed value |
Calculated for screening. Confirm critical figures with the supplier.
Safety and hazards
GHS classification summary, not a safety data sheet
Hazard statements
- H351Suspected of causing cancer.
Precautionary statements (5)
- P203Obtain, read and follow all safety instructions before use.
- P280Wear protective gloves, protective clothing, eye protection and face protection.
- P318If exposed or concerned, get medical advice.
- P405Store locked up.
- P501Dispose of contents and container in accordance with local regulations.
- UN number
- UN 1593
- Transport hazard class
- 6.1
- Packing group
- III
GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.
Full safety data and first aidDichloromethane suppliers
Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings
- India, MumbaiUnclaimed profileMethylene DichlorideGrade, purity and minimum order on requestPrice on request
- India, Ahmedabad ManufacturerUnclaimed profileMethylene ChlorideGrade, purity and minimum order on requestPrice on request
- India, Mumbai ManufacturerUnclaimed profileMethylene DichlorideGrade, purity and minimum order on requestPrice on request
- France, CourbevoieUnclaimed profileMethylene chlorideGrade, purity and minimum order on requestPrice on request
- Cyprus, LimassolUnclaimed profileDichloromethaneGrade, purity and minimum order on requestPrice on request
- Thailand, Pathum Wan ManufacturerUnclaimed profileDichloromethaneGrade, purity and minimum order on requestPrice on request
- ChinaUnclaimed profileMethylene ChlorideGrade, purity and minimum order on requestPrice on request
- United StatesUnclaimed profileDichloromethaneGrade, purity and minimum order on requestPrice on request
- NetherlandsUnclaimed profileMethylene chlorideGrade, purity and minimum order on requestPrice on request
- Price on request
Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.
Where suppliers are based
642 suppliers in 64 countries
- India167
- China100
- United States92
- United Kingdom23
- Turkey21
- Malaysia13
- and 58 more countries
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Dichloromethane price
Indicative price range per kg from live supplier offers
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Uses and applications
What the substance is used for, by industry and function
The active ingredient is no longer contained in any registered pesticide products ... "cancelled.".
Postharvest fumigation of strawberries, commodity fumigation of grains, with ethylene for degreening citrus fruits.
The Food and Drug Administration (FDA) is amending its regulations to ban the use of methylene chloride as an ingredient of cosmetic products.
Methylene chloride is predominantly used as a solvent in paint strippers and removers, as a process solvent in the manufacture of drugs, pharmaceuticals, and film coatings, as a metal cleaning and finishing solvent in electronics manufacturing, and as an agent in urethane foam blowing. It is used as an extraction solvent for spice oleoresins, hops, and for the removal of caffeine from coffee.
Read more
However, due to concern over residual solvent, most decaffeinators no longer use methylene chloride.
Industrial uses: Solvent, Other, Processing aids not otherwise specified, Fuel, Cleaning agent, Waterproofing agent, Refrigerants.
Consumer uses: Cleaning agent, Laboratory chemicals, Intermediate, Adhesion/cohesion promoter, Solvent.
Use classes: Pesticides, Cosmetics.
Roles
- aetiopathogenetic role
- aprotic solvent
- carcinogenic agent
- polar aprotic solvent
- polar solvent
- refrigerant
- solvent
Functional uses
- Adhesion/cohesion promoter
- Dye
- Flavouring and nutrient
- Solvent
Pharmacology
Methylene Chloride is a clear, colorless, nonflammable, volatile liquid chlorinated hydrocarbon with a sweet, pleasant smell and emits highly toxic fumes of phosgene when heated to decomposition. Methylene chloride is primarily used as a solvent in paint removers, but is also used in aerosol formulations, as a solvent in the manufacture of pharmaceuticals, as a degreasing agent, in electronics manufacturing and as an ethane foam blowing agent. Inhalation exposure to this substance irritates the nose and throat and affects the central nervous system. Methylene chloride is a possible mutagen and is reasonably anticipated to be a human carcinogen. (NCI05)
How it is made
The predominant method of manufacturing methylene chloride employs as a first step the reaction of hydrogen chloride and methanol to give methyl chloride. Excess methyl chloride is then mixed with chlorine and reacts to give methylene chloride, chloroform, and carbon tetrachloride as coproducts. This reaction is usually carried out in the gas phase thermally but can also be done catalytically or photolytically. Parallel reactor trains operating on different feeds, CH4-CH3Cl or CH3Cl-CH2Cl2, are known.
Read more
At low temperature and high pressure, the liquid-phase process is capable of giving high selectivities to methylene chloride.
(A) lesser used method involves a direct reaction of excess methane with chlorine at high temperatures, approximately 400-500 °C, or at somewhat lower temperatures either catalytically or photolytically. This process produces methyl chloride, chloroform, and carbon tetrachloride as coproducts. The temperature and raw material flow rates to the reactor can be controlled to maximize the production of the particular chloromethane desired. The reactor effluent also contains unreacted methane and hydrogen chloride. Methane is recovered by removing the HCl by water washing and then drying before recycling. The liquid chloromethane stream, which contains the methylene chloride and its coproducts, passes through a sequence of fractionating columns after washing, alkali scrubbing, and drying.
Regulatory status
Inventories, regulations and trade controls that list this substance
Europe
- EU harmonised classification (CLP Annex VI)Index no: 602-004-00-3
Health and food
- EU Cosmetics Regulation Annex II, prohibited in cosmeticsName: Dichloromethane, methylene chloride, Ref no: 1389, Annex ref: II/1389
United States
- TSCA inventory (USA)Status: Active in US commerce, Regulatory flags: Section 6 risk management rule
HS code and trade data
Customs classification and reported world trade statistics
Global trade
World import and export statistics for the HS code Dichloromethane is traded under.
Dichloromethane (methylene chloride)
- Turkey11.0%
- Brazil5.7%
- United States4.6%
* Partner reported figures, a lower bound.
The HS code shown for Dichloromethane is indicative (it was matched by name in the HS nomenclature). Confirm the classification with your customs broker before shipping.
Related chemicals
Parent and salt forms, stereoisomers, similar structures and isomers
Salt and hydrate forms
Records that share this compound as their parent
Stereoisomers and isotopic forms
Same connectivity, different stereochemistry or isotopes (same InChIKey skeleton)
Frequently asked questions
Quick answers about Dichloromethane, based on the data on this page
What is Dichloromethane?
What is the CAS number of Dichloromethane?
What is the molecular formula and weight of Dichloromethane?
What is Dichloromethane used for?
Is Dichloromethane hazardous?
What is the HS code of Dichloromethane?
Where can I buy Dichloromethane?
Where can I buy Dichloromethane in India?
What is the price of Dichloromethane?
Guides for buyers
Practical guides that help when you source, ship or handle Dichloromethane
- Guide, Trade and logisticsShipping dangerous goods: UN numbers, classes and packing groupsHow the UN dangerous goods system works for chemicals, from the nine classes and UN numbers to packing groups, UN packaging marks, labels, documents and segregation.Read
- Guide, SafetyHow to read a safety data sheet in 10 minutesA section by section method to pull the essentials out of any 16 section SDS: identity, hazards, composition, storage, PPE, properties, transport and emergency measures.Read
- Guide, SafetyGHS pictograms, signal words and hazard statements explainedA practical guide to the nine GHS pictograms, the signal words Danger and Warning, H and P statements, and how to read a chemical label in seconds.Read
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