Dihalomethane

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The dihalomethanes are organic compounds in which two hydrogen atoms in methane are replaced by halogen atoms. They belong to the haloalkanes, specifically the subgroup of halomethanes, and contains ten members.

There are four members with only one kind of halogen atom: difluoromethane, dichloromethane, dibromomethane and diiodomethane.

Structural Formula Difluoromethane Structural Formula V1.svg Dichloromethane Structural Formula V1.svg Dibromomethane Structural Formula V1.svg Diiodomethane Structural Formula V1.svg
Name Difluoromethane Dichloromethane Dibromoethane Diiodomethane
Melting point −136 °C [1] −97 °C [2] −52 °C [3] 6 °C [4]
Boiling point −51,7 °C [1] 40 °C [2] 97 °C [3] decomposes [4]
Space-filling model Difluoromethane-3D-vdW.png Dichloromethane-3D-vdW.png Dibromomethane 3D.png Diiodomethane-3D-vdW.png

There are six members with two kinds of halogen atoms:

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