Dihalomethanes

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The dihalomethanes are organic compounds in which two hydrogen atoms in the methane are replaced by halogens . Dihalomethanes belong to the haloalkanes or to the subgroup of halomethanes .

Representative

Structural formula Difluoromethane Structural Formula V1.svg Dichloromethane Structural Formula V1.svg Dibromomethane Structural Formula V1.svg Diiodomethane Structural Formula V1.svg
Surname Difluoromethane Dichloromethane Dibromomethane Diiodomethane
Melting point −136 ° C −97 ° C −52 ° C 6 ° C
boiling point −51.7 ° C 40 ° C 97 ° C decomposition
Dome model Difluoromethane-3D-vdW.png Dichloromethane-3D-vdW.png Dibromomethane 3D.png Diiodomethane-3D-vdW.png

The corresponding dihalomethanes of all halogens are known: difluoromethane, dichloromethane, dibromomethane, diiodomethane.

There are also six dihalomethanes of the type CH 2 XY, where X and Y are different halogens:

See also

Web links

Commons : Dihalomethanes  - collection of images, videos and audio files

Individual evidence

  1. a b Entry on difluoromethane in the GESTIS substance database of the IFA , accessed on February 29, 2020(JavaScript required) .
  2. a b Entry on dichloromethane in the GESTIS substance database of the IFA , accessed on February 29, 2020(JavaScript required) .
  3. a b Entry on dibromomethane in the GESTIS substance database of the IFA , accessed on February 29, 2020(JavaScript required) .
  4. a b Entry on methylene iodide in the GESTIS substance database of the IFA , accessed on February 29, 2020(JavaScript required) .