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Dibromomethane information


Dibromomethane
Spacefill model for dibromomethane
Names
Preferred IUPAC name
Dibromomethane[1]
Other names
  • Methyl dibromide
  • Methylene bromide
  • Methylene dibromide
  • Refrigerant-30B2[citation needed]
Identifiers
CAS Number
  • 74-95-3 checkY
3D model (JSmol)
  • Interactive image
Abbreviations
  • DBM[citation needed]
  • MDB[citation needed]
  • UN 2664[citation needed]
Beilstein Reference
969143
ChEBI
  • CHEBI:47077 checkY
ChemSpider
  • 2916 checkY
ECHA InfoCard 100.000.750 Edit this at Wikidata
EC Number
  • 200-824-2
Gmelin Reference
25649
MeSH methylene+bromide
PubChem CID
  • 3024
RTECS number
  • PA7350000
UNII
  • V69B659W01 checkY
UN number 2664
CompTox Dashboard (EPA)
  • DTXSID4021557 Edit this at Wikidata
InChI
  • InChI=1S/CH2Br2/c2-1-3/h1H2 checkY
    Key: FJBFPHVGVWTDIP-UHFFFAOYSA-N checkY
SMILES
  • BrCBr
Properties
Chemical formula
CH2Br2
Molar mass 173.835 g·mol−1
Appearance Colorless to yellow liquid
Density 2.477 g⋅mL−1
Melting point −52.70 °C; −62.86 °F; 220.45 K
Boiling point 96 to 98 °C; 205 to 208 °F; 369 to 371 K
Solubility in water
12.5 g⋅L−1 (at 20 °C)
Vapor pressure 4.65 kPa (at 20.0 °C)
Henry's law
constant (kH)
9.3 μmol⋅Pa−1⋅kg−1
Magnetic susceptibility (χ)
−65.10·10−6⋅cm3/mol
Refractive index (nD)
1.541
Thermochemistry
Heat capacity (C)
104.1 J⋅K−1⋅mol−1
Hazards
GHS labelling:
Pictograms
GHS07: Exclamation mark
Signal word
Warning
Hazard statements
H332, H412
Precautionary statements
P273
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
0
0
Lethal dose or concentration (LD, LC):
LD50 (median dose)
  • 1 g⋅kg−1 (oral, rabbit)
  • 3.738 g⋅kg−1 (subcutaneous, mouse)
  • >4 g⋅kg−1 (dermal, rabbit)
Related compounds
Related alkanes
  • Bromoform
  • Tetrabromomethane
  • 1,1-Dibromoethane
  • 1,2-Dibromoethane
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)
Infobox references

Dibromomethane or methylene bromide, or methylene dibromide is a halomethane with the formula CH2Br2. It is slightly soluble in water but very soluble in organic solvents. It is a colorless liquid.

  1. ^ "methylene bromide - Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 25 March 2005. Identification. Retrieved 18 June 2012.

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Dibromomethane

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Dibromomethane or methylene bromide, or methylene dibromide is a halomethane with the formula CH2Br2. It is slightly soluble in water but very soluble...

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Heavy liquid

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2-Dibromoethane 2.180 cis-1,2-Dibromoethene 2.246 trans-1,2-Dibromoethene 2.231 Dibromomethane 2.477 Bromal 2.550 Bromoform 2.890 1,1,2,2-Tetrabromoethane (Muthmanns...

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Hydrogen bromide

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bromide reacts with dichloromethane to give bromochloromethane and dibromomethane, sequentially: HBr + CH2Cl2 → HCl + CH2BrCl HBr + CH2BrCl → HCl + CH2Br2...

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DBM

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Dibenzoylmethane, an aromatic diketone: 1,3-diphenylpropane-1,3-dione Dibromomethane, a halomethane Difference bound matrix, a data structure used in a field...

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Bromomethane

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compoundPages displaying short descriptions of redirect targets Chloromethane Dibromomethane Bromoform Carbon tetrabromide "methyl bromide - Compound Summary". PubChem...

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Dibromofluoromethane

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soluble in alcohol, acetone, benzene and chloroform. It is prepared from dibromomethane and antimony(III) fluoride. It can be used to prepare bromofluoromethane...

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Lombardo methylenation

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compounds with the use of Lombardo's reagent, which is a mix of zinc, dibromomethane, and titanium tetrachloride. The Lombardo methylenation has been used...

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Carbon tetrabromide

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The byproducts include other brominated methanes (methyl bromide, dibromomethane and bromoform) and hydrogen bromide. This process is analogous to the...

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Diiodomethane

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iodide Iodoform Carbon tetraiodide Difluoromethane Dichloromethane Dibromomethane Except where otherwise noted, data are given for materials in their...

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Tetrabromoethane

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data sheet (SDS) hells-confetti.com Related compounds Related alkanes Dibromomethane Bromoform Tetrabromomethane 1,1-Dibromoethane 1,2-Dibromoethane 1,2-Dibromopropane...

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Bromoform

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[skin] IDLH (Immediate danger) 850 ppm Related compounds Related alkanes Dibromomethane Tetrabromomethane 1,1-Dibromoethane 1,2-Dibromoethane Tetrabromoethane...

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List of UN numbers 2601 to 2700

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no longer in use) UN 2663 ? (UN No. no longer in use) UN 2664 6.1 Dibromomethane UN 2665 ? (UN No. no longer in use) UN 2666 4.3 (UN No. no longer in...

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Nysted reagent

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Nysted in Chicago, Illinois. It was originally prepared by reacting dibromomethane and activated zinc in THF. A proposed mechanism for the methenylation...

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Halomethane

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out. It strongly depletes the ozone layer and is highly toxic. CH3Br Dibromomethane Methylene bromide Solvent and chemical intermediate. CH2Br2 Tribromomethane...

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Cyclopropanation

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Modifications involving cheaper alternatives have been developed, such as dibromomethane or diazomethane and zinc iodide. The reactivity of the system can also...

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Dihalomethane

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with only one kind of halogen atom: difluoromethane, dichloromethane, dibromomethane and diiodomethane. There are six members with two kinds of halogen atoms:...

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Ethion

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pesticide. Ethion is produced under controlled pH conditions, by reacting dibromomethane with Diethyl dithiophosphoric acid in ethanol. Other methods of manufacturing...

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Fluorenylidene

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Halogenated solvents also stabilize the singlet state. For example, dibromomethane and hexafluorobenzene deactivate the higher-energy singlet state, decelerating...

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Organotitanium chemistry

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reagent" is used for methylenation. It is functionally related to the Dibromomethane-Zinc-Titanium(IV) Chloride reagent. This chemistry addresses a shortcoming...

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