Silicon tetraiodide

• Tetraiodsilan
• Tetrajodsilan

White solid

Fixed

4.198 g · cm -3 ( 25 ° C)

120.5 ° C

287.4 ° C

• Soluble in toluene
• Decomposition in water

Risk

Template: Infobox chemical / molecular formula search available

Silicon tetraiodide is an inorganic chemical compound of silicon selected from the group of iodides, and silicon tetrahalides.

Production and representation

Silicon tetraiodide can be obtained by reaction of silicon with iodine or hydrogen iodide.

Properties

Silicon tetraiodide is a very moisture-and light-sensitive colorless crystalline mass, which melts to a lemon-yellow liquid. When heating takes place (especially in a vacuum) easy decomposition into the elements. The connection turns reddish after some time by deposition of iodine. With water it decomposes into hydrogen iodide and silica. It has a cubic crystal structure with space group Pa3.