Cesium nitrate

Other Applications. The refractive index of siUcate or borosiUcate glass can be modified by the addition of cesium oxide, introduced as cesium nitrate or carbonate. Glass surfaces can be made resistant to corrosion or breakage by surface ion exchange with cesium compound melts or solutions. This process can also be used for the production of optical wave guides (61). 

Sachleben, R. A., Bonnesen, F. V., Descazeaud, T., Haverlock, T. J., Urvoas, A., Moyer, B. A., Surveying the extraction of cesium nitrate by 1,3-alternate calix 4-arene crown-6 ethers in 1,2-dichloroethane, Solv. Extr. Ion Exch., 17,1445-1459, 1999. 

It is seen that the transition occurs at about p = 0.67, and that this is the value of p for the dimorphous substance calcium carbonate. At P = 0.85 transition occurs to other structures, shown by rubidium nitrate and cesium nitrate, in which the univalent cation probably has ligancy twelve. 

It may also be prepared by treatment of an excess of XeOF4 with cesium nitrate 17... 

Cesium Azide. See Vol l,p A528-R Cesium Nitrate. See under Nitrates CesiumNitrites, See under Nitrites Cesium Perchlorate. See under Perchlorates Cesium Periodate. See under Periodates Cesium Permanganote. See under Permanganates... 

Bazelaire, E., Bonnesen, P.B., Delmau, L.H. et al. 2003. New amino-functionalized 1,3-altemate calyx[4]arene bis- and mono-(benzo-crown-6 ethers) for pH-switched cesium nitrate extraction. Tetrahedron Lett. 44 (29) 5397-5401. 

Bazelaire, E., Gorbunova, M.G., Bonnesen, P.V., Moyer, B.A., Delmau, L.H. 2004. pH-switchable cesium nitrate extraction with calyx[4]arene mono and bis(benzo-crown-6) ethers bearing amino functionalities. Solvent Extr. Ion Exch. 22 (4) 637-661. 

In water, the introduction of a counteranion (NOy) induces a stronger electrostatic interaction, which tends to draw the cations out of the mean plane of the crown ether loop. Simulations with cesium nitrate and the various calix[4]arene-biscrowns show that the best fit is obtained with BC8 and BC9.59... 

Figure 2. Chemistry occurring in three sections of a simple flowsheet in solvent extraction using CSSX as an example. In the extraction step, essentially all of the Cs+ and a minor fraction of the K+ ions in the waste are extracted (i.e., M+ = Cs+ or K+). The K+ ions are removed in scrubbing as shown, while the calixcrown-Cs+ complex effectively remains in the solvent so that a pure cesium nitrate product is obtained on stripping.

Figure 5. Stripping under three conditions normal, hindered by the presence of a lipophilic anion, and restored by addition of tri- -octylammonium cation. The tri- -octylamine in the solvent exists in its protonated form under stripping conditions, where it provides charge balance for traces of lipophilic anions such as surfactants or dibutylphosphate, allowing cesium nitrate to be stripped. Under extraction conditions, the amine is in the neutral form and has negligible effect.

Delmau, L. H., Lefranc, T. J., Bonnesen, P. V., Bryan, J. C., Presley, D. J., and Moyer, B. A. Fundamental Studies Regarding Synergism Between Calix[4]arene-bis(ferf-octylbenzo-crown-6) and Alcohol Modifiers in the Solvent Extraction of Cesium Nitrate, Solvent Extr. Ion Exch., in press. 

To 30 ml. of dilute sulfuric acid (1 1) is added 36.3 g. of basic titanium (IV) sulfate and 10 g. of cesium nitrate. The mixture is heated until sulfur trioxide fumes are given off, cooled, 20 ml. of concentrated sulfuric acid added, and the mixture fumed again. After cooling, the solution is diluted with 300 ml. of water and filtered to remove any insoluble material. The filtrate is passed through a Jones reductor and allowed to cool for 2 days in an ice chest. This solution should be exposed to air as little as possible to prevent oxidation of titanium(III). 

Cesium antimony (III) chloride, 3CsCl-2SbCls, precipitation in extraction of cesium from pollucite, 4 6 Cesium azide, 1 79 Cesium dibromoiodate(I), 5 174 Cesium dichloroiodate(I)(iodo-dichloride), 4 9 5 174 analysis of, 4 11 Cesium diiodoiodate(I), 5 174 Cesium nitrate, 4 6 1-hydrogen nitrate, 4 7 Cesium titanium alum, 6 50 Charcoal, sugar, 2 74 Chelate compounds, of 1,3-diketones, 2 11 5 105 of o-hydroxyaldehydes and o-hy-droxyphenones, 2 11... 

Cesium Antimony(III) Chloride Method and Preparation of Cesium Nitrate... 

By the above procedure a sample of average pollucite gives a yield of cesium nitrate of about 19 g. This is a convenient starting material for the preparation of other cesium compounds. 

CsICl2 Cesium iododichloride, 4 9 CsNOs Cesium nitrate, 4 6 1-hydrogen nitrate, 4 7 CsN3 Cesium azide, 1 79 CuBr Copper(I) bromide, 2 3 CuCl Copper(I) chloride, 2 1 [CuC1-CO]-2H20 Copper carbonyl chloride, 2 4... 

Cesium nitrate Strontium nitrate Sodium nitrite Smoke Smoke Smoke Sodium bromate Potassium bromate Sodium iodate Smoke Smoke Smoke... 

A revised value for the heat of formation of nitrate ion has been obtained by re-evaluating the lattice energy of cesium nitrate with consideration of charge distribution in the anion. 

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