|
- Cesium (Cs) Metal Synonyms:
cesium metal, Cs, caesium, caesium 137, cesium metal ingot, cesium liquid, CAS# 7440-46-2
- Cesium (Cs) Metal Designations:
Chemical Name: Cesium
Chemical Formula: Cs
a) The alkali metal, cesium, is silvery-white, soft and ductile. It has the lowest melting point of any alkali metal. Cesium reacts violently with water and due to its reaction with oxygen, should be stored in the absence of air.
b) Located in the lower left-hand corner of the periodic table, cesium is the most electropositive element and has the lowest ionization potential.
99.98%
a) Solid ingot
b) It melts to a liquid at room temperature
|
Atomic Number
|
55
|
|
Molecular Weight (g/mol.)
|
132.90543
|
|
Density @18°C (g/cm3)
|
1.892
|
|
Specific Heat @20°C (cal/g-°C)
|
.052
|
|
Melting Point (°C)
|
28.64
|
|
Boiling Point (°C)
|
690
|
|
Heat of Fusion (cal/g)
|
3.913
|
|
Thermal Conductivity of Liquid (cal/s-cm-°C)
|
.0440
|
|
Mohs Hardness @20°C
|
2 - 2.9
|
|
Covalent Radius (angstroms)
|
2.35
|
|
Heat of Vaporization (cal/g)
|
146
|
|
Crystallography
|
cubic structure, body centered
|
a) A "getter" in electron tubes, photoelectric cells, ion propulsion systems and as a catalyst.
b) Also used in atomic clocks; Removes air traces in vacuum tubes; Ion propulsion systems; Medical photoelectric cells; Cesium vapor and Magnetometers
Vacuum sealed in breakseal ampoules
Listed. For further information please call the E.P.A. at +1.202.554.1404
CAS# 7440-46-2
1407
|