Thulium dibromide

Thulium dibromide is an inorganic compound, with the chemical formula of TmBr₂. It is a dark green solid that is easy to dissolve, with the SrI₂ structure and it needs to be stored in an inert atmosphere.

Thulium dibromide

Names
Other names Thulium(II) bromide
Identifiers
CAS Number	64171-97-7 Y
3D model (JSmol)	Interactive image
InChI InChI=1S/2BrH.Tm/h2*1H;/q;;+2/p-2 Key: AZLHTMVBZVOUEC-UHFFFAOYSA-L
SMILES [Tm+2].[Br-].[Br-]
Properties
Chemical formula	TmBr2
Molar mass	328.74
Appearance	dark green solid[1]
Melting point	619 °C[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Preparation

Thulium dibromide can be prepared by reacting thulium with thulium tribromide at 800~900 °C in a vacuum.^[1] At high temperatures, the alkali metals can also obtain bromide, but only lithium and sodium reactions obtain thulium dibromide, and the response to the participation of potassium, rubidium, and caesium.^[2]