Formula: CsCl Hill device formula: Cl1Cs1 CAS registry number: <7647-17-8> Formula weight: 168.358 Class: chloride Colour: white Appearance: crystalline solid Melting point: 646°C Boiling point: 1290°C; 1297°C Density: 3988 kg m-3

The oxidation number of caesium in caesium chloride is 1.

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One way to make caesium chloride is to react the hydroxide with hydrochloric acid. The resulting salt deserve to then be purified by recrystallization.

CsOH(aq) + HCl(aq) → CsCl(aq) + H2O(l)

Caesium(I) chloride can also be made by the neutralization of caesium(I) carbonate with hydrochloric acid. The resulting salt have the right to then be purified by recrystallization.

Cs2(CO3)(aq) + 2HCl(aq) → 2CsCl(aq) + H2O(l) + CO2(g)

While not a normal route of preparation because of the price, caesium metal reacts intensely via all the halogens to create sodium halides. So, it burns through chlorine, Cl2, to develop caesium(I) chloride, CsCl.

2Cs(s) + Cl2(g) → 2CsCl(s)

Solid state structure

Geomeattempt of caesium: 8 coordinate: cubicPrototypical structure: CsCl


Element analysis

The table reflects aspect percenteras for CsCl (caesium chloride).

Element %
Cl 21.06
Cs 78.94

Isotope pattern for CsCl

The chart listed below mirrors the calculated isotope pattern for the formula CsCl with the the majority of intense ion set to 100%.


The information on these compounds pages are assembled and adjusted from the primary literature and several various other sources consisting of the complying with.

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R.T. Sanderboy in Chemical Periodicity, Reinhold, New York, USA, 1960.A.F. Trotman-Dickenson, (ed.) in Comprehensive Inorganic Chemistry, Pergamon, Oxford, UK, 1973.R.W.G. Wyckoff, in Crystal Structures, volume 1, Interscientific research, John Wiley & Sons, 1963.A.F. Wells in Structural not natural chemistry, 4th edition, Oxford, UK, 1975.J.D.H. Donnay, (ed.) in Crystal data determiindigenous tables, ACA monograph number 5, Amerihave the right to Crystallographic Association, USA, 1963.J.W. Mellor in A comprehensive treatise on inorganic and theoretical chemistry, volumes 1-16, Longmans, London, UK, 1922-1937.J.E. Macintyre (ed.) in Dictionary of inorganic compounds, quantities 1-3, Chapmale & Hall, London, UK, 1992.

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