High Purity Cesium
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Cerium Ingot

 

MATERIAL OVERVIEW

Characteristics: Liquid at slightly above room temperature; soft solid below melting point. Highly reactive. Decomposes in water, with evolution of hydrogen, which ignites instantly. Also reacts violently with oxygen, the halogens, sulfur, and phosphorus, with spontaneous ignition and/or explosion. Mohs hardness 0.2. Cesium has highest position in the electromotive series; it also has the lowest melting point of any alkali metal, and the lowest ionization potential of any element. Soluble in acids and alcohol. Low toxicity.

Derivation: By thermochemical reduction of CsCl with calcium, or by electrolysis of fused cyanide. Its chief ore is pollucite, found in Maine, S. Dakota, Manitoba, Elba, S. Africa.

Hazard: Dangerous fire and explosion risk. Ignites spontaneously in moist air; may explode in contact with sulfur or phosphorus. Reacts violently with oxidizing materials. Causes burns on contact with skin.

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GENERAL PROPERTIES

Symbol:

Cs

Atomic Number:

55

Atomic Weight:

132.9054

Density:

1.873 gm/cc

Melting Point:

28.40 oC

Boiling Point:

669.3 oC

Thermal Conductivity:

0.359 W/cm/K @ 298.2 K

Electrical Resistivity:

20 microhm-cm @ 20 oC

Electronegativity:

0.7 Paulings

Specific Heat:

0.057 Cal/g/K @ 25 oC

Heat of Vaporization:

16.3 K-Cal/gm atom at 669.3 oC

Heat of Fusion:

0.5 Cal/gm mole

 

TYPICAL ANALYSES

Impurities in ppm

Material / Purity: 3N Material / Purity: 3N
Al 7 Fe 7
Mg 1 Mn <1
Ni <7 Pb <7
V <1 Ba <4
B <7 Ca 1
Cu <7 Cr <7
Si <7 Na <7
K <1 Rb <1
Be <1 Ag <1
Zr <13 Sn <7
Sr <1 Co <7
Ti <7 Mo <7

 

Packaging

Cesium Standard Cesium Breakseal
Cesium Pre-scored Ampoule Cesium Breakseal Ampoule

 

 

SPECIFICATIONS:

Pre-Scored:

Size

O.D.

Length

Glass Type

1 Gram

10.5 mm

50-52 mm

Pyrex

5 Gram

16.6 mm

70 mm

Pyrex

25 Gram

22.5 mm

115 mm

Pyrex

50 Gram

28.5 mm

160 mm

Pyrex

Breakseal:

1 Gram

10 mm

180 mm

Pyrex

5 Gram

13 mm

230 mm

Pyrex

 

CESIUM POWDER, SHOT, PELLETS, & INGOT

Material

Purity

Cesium Metal 1 gm Pre-Scored Ampoule 3N+
Cesium Metal 1 gm Straight Breakseal Ampoule 3N+
Cesium Metal 5 gm Pre-Scored Ampoule 3N+
Cesium Metal 5 gm Straight Breakseal Ampoule 3N+
Cesium Metal 25 gm Pre-Scored Ampoule 3N+
Cesium Metal 25 gm Straight Breakseal Ampoule 3N+
Cesium Metal 50 gm Pre-Scored Ampoule 3N+
Cesium Metal 50 gm Straight Breakseal Ampoule 3N+

Cesium metal is packaged in glass ampoules under argon.

 

CESIUM COMPOUNDS

Material

Purity

Cesium Acetate CsC2H3O2  -8 Mesh 3N
Cesium Bromide CsBr  -60 Mesh 3N
Cesium Bromoiodide CsIBr2  -8 Mesh 3N
Cesium Carbonate Cs2CO3  -40 Mesh 3N
Cesium Chloride CsCl  -60 Mesh 3N
Cesium Chlorobromide CsBrCl2  -8 Mesh 3N
Cesium Chloroiodide CsICl2  -8 Mesh 3N
Cesium Chromate CsCrO4  -20 Mesh  camera1 3N
Cesium Fluoride CsF  -60 Mesh 3N
Cesium Iodate CsIO3  -60 Mesh 3N
Cesium Iodide CsI  -8 Mesh 3N
Cesium Molybdate Cs2MoO4  -200 Mesh 3N
Cesium Niobate CsNbO3  -200 Mesh 3N
Cesium Nitrate CsNO3  -80 Mesh 3N
Cesium Perchlorate CsClO4  -8 Mesh 2N
Cesium Selenate Cs2SeO4  -80 Mesh 3N
Cesium Selenite Cs2SeO3  -80 Mesh 3N
Cesium Tantalate CsTaO3  -200 Mesh 3N
Cesium Tellurate Cs2TeO4  -80 Mesh 3N
Cesium Tellurite Cs2TeO3  -80 Mesh 3N
Cesium Titanate Cs2TiO3  -200 Mesh 3N
Cesium Tungstate Cs2WO4  -200 Mesh 3N
Cesium Zirconate Cs2ZrO3 -200 Mesh 3N

Compounds are packaged to order and sold by the gram or kilogram.

 

Material Safety Data Sheet - MSDS
Cesium MSDS
Technical Data Sheets
Understanding Mesh Sizes
 
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