Caesium iodide, Csl

Caesium iodide, Csl.—The iodide is prepared by the action of caesium sulphate on barium iodide. It forms crystals, melting at 621 0° C.,15 and boiling at 1280° C.,16 the vapour-pressure in atmospheres corresponding with the expression17... 

A study of RDX behaviour under static ultrahigh pressure (up to 65 GPa), generated by using diamond anvil cells (DACs) using FT-IR spectroscopy and UV-VIS absorption spectroscopy, is a topic of paper [61]. RDX changed its colour into dark red when compressed up to 20 GPa with caesium iodide (Csl), filled as a pressure medium. In this case the intensities of characteristics of IR absorption peaks of RDX decreased as the pressure increased, and did not return to the intensities measured at ambient pressure, after the pressure was unloaded. However, when RDX was compressed alone, its colour changed into yellow at a pressure above 60 GPa. In its UV-VIS absorption spectra the peak shifted from 243.5 nm at ambient pressure to 410 nm at 65.5 GPa. The authors assume that the HOMO-LUMO band gap of this nitramine decreases with increasing pressure [61] which is in line with the opinion of Kuklja and Kunz [59]. 

The materials that have found particular application for gamma-ray measurements are all inorganic crystals sodium iodide (Nal), caesium iodide (Csl), calcium fluoride (CaF2), bismuth germanate (BGO) and, recently, lanthanum halides. Of these, the first is the most important and the last are materials rapidly gaining in importance. 

However, let us return to the solubility data in caesium iodide-melt at 700 °C. It can be seen that the oxide solubilities in this melt are intermediate between those in KCl-NaCl (CsCl-KCl-NaCl) and CsBr-KBr melts. Since for the said iodide-melt the range of oxides suitable for the investigations is too small, compared with other halides, and the range of solubilities is too narrow, some of the correlations considered above have not been analysed for molten Csl. Nevertheless, for chloride, bromide and iodide-melts, linear correlations between pPMe0 and rk 2 can be found, and the corresponding parameters of equation (3.7.16), with their confidence ranges, are presented in Table 3.7.16. 

Caesium iodide Cesium iodide Cesium Iodide (Csl) Cesium monoiodide Dicesium diiodide EINECS 232-145-2 NSC 15199 Tricesium triiodide. Crystals for infrared spectroscopy, scintillation counters, fluorescent screens. Crystals mp = 521°, bp = 1280° d = 4,5 LDsQ (rat ip)" 1.4 g/kg. Atomergic Chemetals Cabot Carbon Ltd Cerac Noah Chem. 

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