CAS number : 7647-17-8
Molecular weight :168.37
Molecular formula/chemical symbol :CsCl
Description :
Caesium chloride (cesium chloride in North America), is the inorganic compound with the formula CsCl. This colorless solid is an important source of caesium ions in a variety of applications. Its crystal structure forms a major structural type where each caesium ion is coordinated by 8 chlorine ions. Caesium chloride crystals are thermally stable, but easily dissolve in water and concentrated hydrochloric acid, and therefore gradually disintegrate in the ambient conditions due to moisture. Caesium chloride occurs naturally in mineral waters and as an impurity in carnallite (up to 0.002%), sylvite and kainite. Less than 20 tonnes of CsCl is produced annually worldwide, mostly from a caesium-bearing mineral pollucite
Caesium chloride is colorless in the form of large crystals and white when powdered. It readily dissolves in water with the maximum solubility increasing from 1865 g/L at 20 °C to 2705 g/L at 100 °C. The crystals are very hygroscopic and gradually disintegrate at ambient conditions. Caesium chloride does not form hydrates.
|
Т (°C) |
0 |
10 |
20 |
25 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
100 |
|||
|
S (wt%) |
61.83 |
63.48 |
64.96 |
65.64 |
66.29 |
67.50 |
68.60 |
69.61 |
70.54 |
71.40 |
72.21 |
72.96 |
|||
|
Caesium chloride |
|||||||||||||||
|
|
|||||||||||||||
|
Caesium chloride |
|||||||||||||||
|
Other names Cesium chloride |
|||||||||||||||
|
Identifiers |
|||||||||||||||
|
22713 |
|||||||||||||||
|
Jmol-3D images |
|||||||||||||||
|
[Cs+].[Cl-] |
|||||||||||||||
|
InChI=1S/ClH.Cs/h1H;/q;+1/p-1
InChI=1/ClH.Cs/h1H;/q;+1/p-1 |
|||||||||||||||
|
Properties |
|||||||||||||||
|
CsCl |
|||||||||||||||
|
168.36 g/mol |
|||||||||||||||
|
Appearance |
white solidhygroscopic |
||||||||||||||
|
3.99 g/cm3 |
|||||||||||||||
|
645 °C |
|||||||||||||||
|
1297 °C (vaporizes) |
|||||||||||||||
|
Solubility in water |
1865 g/L[2] |
||||||||||||||
|
8.35 eV (80 K)[1] |
|||||||||||||||
|
Refractive index (nD) |
1.64[4] |
||||||||||||||
|
Structure |
|||||||||||||||
|
Caesium chloride (see text), Pm3m, space group No. 221, Pearson symbol cP2 |
|||||||||||||||
|
simple cubic (interpenetrating) |
|||||||||||||||
|
Related compounds |
|||||||||||||||
|
Other anions |
Caesium
fluoride |
||||||||||||||
|
Other cations |
Lithium
chloride |
||||||||||||||
|
|
|||||||||||||||
USES :
Preparation
of metal cesium and cesium-containing single crystal raw material,
Reagents
for the analysis.
Keywords:Electronic chemicals
Report :
|
Product name |
Cesium chloride |
CAS：7647-17-8 |
||||
|
Description |
white solidhygroscopic |
|||||
|
TEST ITEMS |
TEST RESULTS |
|||||
|
CsCl |
≥99.99％ |
≥99.9％ |
≥99.5％ |
≥99.0％ |
||
|
Na |
≤0.005％ |
≤0.01％ |
≤0.02％ |
≤0.10％ |
||
|
K |
≤0.0005％ |
≤0.001％ |
≤0.01％ |
≤0.05％ |
||
|
Rb |
≤0.001％ |
≤0.002％ |
≤0.01％ |
≤0.2％ |
||
|
Ca |
≤0.001％ |
≤0.005％ |
≤0.01％ |
≤0.03％ |
||
|
Mg |
≤0.003％ |
≤0.005％ |
≤0.01％ |
≤0.02％ |
||
|
Fe |
≤0.0005％ |
≤0.001％ |
≤0.001％ |
≤0.002％ |
||
|
Al |
≤0.001％ |
≤0.002％ |
≤0.005％ |
≤0.02％ |
||
|
Pb |
≤0.0001％ |
≤0.0005％ |
≤0.001％ |
≤0.005％ |
||
|
Ni |
≤0.0001％ |
≤0.001％ |
≤0.001％ |
≤0.05％ |
||
|
SO4 |
--- |
--- |
≤0.01％ |
≤0.05％ |
||
