Germanium tetrafluoride

• Germanium tetrafluoride
• Tetrafluoroethylene German

Colorless gas with a garlic - like odor

Gaseous

2.16 g · cm -3 ( at 0 ° C)

-36.5 ° C

404 kPa (-16 ° C)

Decomposition in water

Risk

Template: Infobox chemical / molecular formula search available

Germanium (IV ) fluoride is a chemical compound selected from the group consisting of germanium compounds, and fluorides.

Production and representation

Germanium (IV ) fluoride can be prepared by reaction of germanium by fluorine or hydrogen fluoride.

It is also formed by the thermal decomposition of the complex salt Ba [ GeF6 ] that can be recovered by precipitation of a solution of germanium dioxide in hydrofluoric acid with barium.

Properties

Germanium (IV ) fluoride is a non-flammable, air strongly smoking gas with garlic-like odor. It forms with water to form corrosive acids ( hydrolysis to GeO2 and H2GeF6 ) and can react violently with them. Above 1000 ° C it decomposes, with hydrogen fluoride, fluorine and germanium arise. From aqueous solutions it crystallizes as a trihydrate.

Use

Germanium (IV ) fluoride is used in combination with disilane for the preparation of SiGe crystals.