|
Atomistry » Osmium » Chemical Properties » Osmium Tetra-iodide | ||
Atomistry » Osmium » Chemical Properties » Osmium Tetra-iodide » |
Osmium Tetra-iodide, OsI4
Osmium Tetra-iodide, OsI4, was obtained by Moraht and Wischin by heating on the water-bath osmic acid, H2OsO4, and a concentrated aqueous solution of hydrogen iodide. The osmic acid slowly dissolves, yielding a deep brown solution, which is stable in the cold. Concentration in vacuo over sulphuric acid and caustic potash (to absorb the hydrogen iodide), and subsequent recrystallisation, yields rhombohedral crystals violet-black in colour, and of metallic appearance. They are hygroscopic, readily soluble in alcohol and water, yielding a reddish brown solution stable in the cold, but one that readily decomposes on warming with precipitation of a dark oxy-iodide.
|
Last articlesZn in 8WB0Zn in 8WAX Zn in 8WAU Zn in 8WAZ Zn in 8WAY Zn in 8WAV Zn in 8WAW Zn in 8WAT Zn in 8W7M Zn in 8WD3 |
© Copyright 2008-2020 by atomistry.com | ||
Home | Site Map | Copyright | Contact us | Privacy |