Thallium(I) iodide

Cubic

• Thallium iodide
• Thalliummonoiodid

Solid fuel

Fixed

7.29 g · cm -3

440 ° C

824 ° C

Practically insoluble in water

Risk

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Thallium (I ) iodide is a chemical compound from the group of thallium compounds and iodides.

Production and representation

Thallium (I ) iodide may be prepared by reaction of thallium (I ) sulfate and thallium ( I) nitrate with potassium gain.

Properties

Thallium (I ) iodide is present in two enantiotropic modifications. Under 168 ° C it has an orthorhombic crystal structure with space group Cmcm (a = 458.2, b = 1292, c = 525.1 pm ). This turns on the light. At temperatures above 168 ° C is located there as a red solid with a crystal structure of cesium chloride type before. This structure remains unchanged for some time even after cooling to room temperature.

Use

Thallium (I ) iodide is used as Thalliumbromidiodid in attenuated total reflectance spectroscopy, as a mixed crystal with thallium ( I) bromide.