Water cesium chloride

Decomposition with Bases. Alkaline decomposition of poUucite can be carried out by roasting poUucite with either a calcium carbonate—calcium chloride mix at 800—900°C or a sodium carbonate—sodium chloride mix at 600—800°C foUowed by a water leach of the roasted mass, to give an impure cesium chloride solution that is separated from the gangue by filtration (22). The solution can then be converted to cesium alum [7784-17-OJ, CS2SO4 Al2(S0 2 24H20. Extraction of cesium from the poUucite is almost complete. Solvent extraction of cesium carbonate from the cesium chloride solution using a phenol in kerosene has also been developed (23). 

Hawes, J. L. Kay, R. L., Ionic association of potassium and cesium chloride in ethanol-water mixtures from conductance measurements at 25°, J. Phys. Chem. 69, 2420-2431 (1965). 

Cesium chloride (CsCl) is produced by the reaction of cesium metal with chlorine gas (Ca + Cl —> CsCl). It is also used in the beer brewing industry, to coat fluorescent screens, and to improve the taste of mineral water. 

At the top right, the diagram shows the densities and sedimentation coef cients for biomolecules, cell organelles, and viruses. Proteins and protein-rich structures have densities of around 1.3 g cm , while nucleic acids show densities of up to 2 g cm . Equilibrium sedimentation of nucleic acids therefore requires high-density media—e.g., concentrated solutions of cesium chloride (CsCl). To allow comparison of S values measured in different media, they are usually corrected to values for water at 20 °C ( S20W ) ... 

Cesium chloride Deuterium oxide ( heavy water )... 

Cesium chloride [7647-17-8] M 168.4, m 645°, b 1303°, d 3.99. Soluble in H2O but can be purified by crystn from HbO (sol in g per cent 162.3(0.7°), 182.2(16.2°) and 290(at bp 119.4°)] and dried in high vac. Sol in EtOH and is deliquescent, keep in a tightly closed container. [Handbook of Preparative Inorganic Chemistry (ed Brauer) Vol I 951 1963]. For further purification of CsCl, a cone aqueous soln of the practically pure reagent is treated with an equivalent weight if I2 and CI2 bubbled into the soln until pptn of CsC I ceased. Reciystn yields a salt which is free from other alkali metals. It is then decomposed to pure CsCl on heating. [JACS 52 3886 1930]. Also rerystd from acetone-water, or from water (0.5ml/g) by cooling in CaC /ice. Dried at 78° under vacuum. 

All of the samples prepared by centrifugation and the float-sink method were demineralized and milled to three micron diameter. The separations were conducted in the presence of a surface active agent, polyoxyethylene(23) lauryl ether, in cesium chloride solutions (14). The macerals were washed thoroughly to reduce the quantity of surfactant in the maceral to less than 500 ppm and the quantity of chloride ion in the wash water to below the limit detectable by precipitation with silver ion (14). 

Each compound was soaked for 1 hr in 38% (wt/v) HC1 followed by soaking in 55% (wt/v) HF for 1 hr. Each was then rinsed exhaustively with water and dried under vacuum at room temperature. In a separate experiment each of the model compounds were exposed to a solution of cesium chloride. After sufficient exposure each compound was recovered and washed with copious quantities of distilled water. The percentage recovery, the melting point and spectroscopic data such as FTIR, proton and carbon-13 NMR were recorded. 

Only salts of the dithio anions with large cations can be prepared177,178). Addition of Co+2,Pb+2, and Ce+3 to solutions of ammonium dithiomolybdate yielded solids that showed the absence of Mo-S bonding at 480—450 cm-1 178). Dithio salts so far prepared177) are given in Table 6. The salt Cs2W02Se2 has been also isolated as a stable solid by the addition of cesium chloride to a water solution of(NH4)2W02S2177). 

The inertness of chromium (III) ion has allowed a complete characterization of the solvation of this ion in several mixed-solvent systems. For this inert transition metal ion of charge 3+, concern with the first shell coordination of solvent molecules can be viewed as a subdivision of coordination chemistry, a point of view less easily applicable to labile systems of metal ions with lower charge. Thus the approach used here is different from that used by A. K. Covington and co-workers (16) in their NMR studies of labile systems (e.g., sodium and cesium chlorides in water-methanol solutions (17)). 

A solution is prepared by dissolving 50.0 g cesium chloride (CsCl) in 50.0 g water. The volume of the solution is 63.3 mL. Calculate the mass percent, molarity, molality, and mole fraction of the cesium chloride. 

Viscosity of aqueous cesium chloride (CsCl) solution was measured in the range of 0.1-5.0 mol kg-i and 0.1-375 MPa at 25 °C. The Jones-Dole B coefficient of CsCl was obtained from the concentration dependence of the viscosity. It is negative not only at atmospheric pressure but also at high pressure, having a maximum against pressure at about 160 MPa. Similar maximum of the B was observed for aqueous sodium chloride (NaCl) solution. The similarity is discussed in terms of the water structure and dielectric friction theory. 

Sample Cesium chloride (Nacalai Tesque Co.) was recrystallized from distilled water. Sample solutions were prepared by weight at the concentration of 0.100-5.000 ( 0.(XX)1) mol kg. The molality was converted into the molarity (c) using the density of aqueous CsCl... 

Figure 2. Pressure dependence of Jones-Dole B coefficients of cesium chloride and sodium chloride in water at 25 °C,...

The HjC-O-Te bonds are remarkably stable no cis-trans isomerization was observed when the hydroxy methoxy tellurium tetrafluorides were kept at temperatures below 130°. The bonds are not cleaved by 65% oleum or chlorosulfonic acid at room temperature, instead, the sulfate esters HjCO-TeF tO-SOjH) were formed. These sulfate esters were transformed to HO-TeFiCO-SOjH) upon heating to 100°. Cesium chloride dissolved in an excess of cis- or /run.s-hydroxy methoxy tellurium tetrafluoride liberated hydrogen chloride with the formation of very hygroscopic cesium methoxo(oxo)letrafluorotellurates(VI). Trunj-hydroxy methoxy tellurium tetrafluoride reacts instantaneously with water with loss of fluoride. The cu-compound is stable toward hydrolysis at room temperature. ... 

It might be desirable to load cesium onto chabazite before mineralization. Chabazite reacts hydrothermally with aqueous cesium chloride to form pollucite, a naturally occurring mineral with cesium trapped in aluminosilicate cages. Reaction of cesium-loaded chabazite with pure water might produce pollucite or the sodium zeolite, faujasite. 

Write the chemical equation for any hydrolysis reaction that occurs when cesium chloride is dissolved in water. Is the resulting solution acidic, basic, or neutral ... 

Cesium chloride (CsCl) [3.89 g (23.1mmole)] is dissolved in 10 mL water. This CsCl solution is added to the Pt(IV) solution from step 1 along with 10 mL water to insure dissolution of the CsCl. 

The ammonium ion can take the place of a monatomic cation in an ionic crystal struaure. For example, the crystal structure of ammonium chloride, NH4CI, which is found in fertilizers, is very similar to the crystal struaure of cesium chloride, CsCl, which is used in brewing, mineral waters, and to make fluorescent screens. In each structure, the chloride ions form a cubic arrangement with chloride ions at the corners of each... 

Caesium chloride Cesium chloride Cesium chloride (CsCI) Cesium monochloride Dicesium dichloride EINECS 231-600-2 NSC 15198 Tricesium trichloride. Used in brewing preparation of cesium compounds mineral waters evacuation of radio tubes in ultracentrifuge separations fluorescent screens contrast medium. Crystals mp = 646° bp = 1303° d = 3.99 LD50 (rat ip) = 1.5 g/kg. Accurate Chem. Sc/. Corp. Atomergic Chemetals Cabot Carbon Ltd. Cerac Janssen Chimica. 

Bunsen and Kirchhoff had previously discovered cesium in 1860 in the mineral water of Diirkheim, Germany. It was identified based on the bright blue lines in the spectrum. It was the first element to be discovered by spectral analysis. Cesium metal was first produced in 1882 by the electrolysis of cesium chloride. 

Benzenesulfonic acid, 2,2 -(1,2-ethenediyl) bis (5-((4-(bis (2-hydroxyethyl) amino]-6-((4-sulfophenyl) amino)-1,3,5-triazin-2-yl) amino)-, tetrasodium salt fluorescent screens Cadmium sulfate Cesium chloride fluorescent screens, crystals Cesium iodide fluorescent stain, heparin Berberine chloride fluorescent water marker Fluorescein... 

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