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Beryllium is a chemical element with the symbol Be and atomic number 4. A bivalent element, beryllium is a steel grey, strong, light-weight yet brittle, alkaline earth metal. It is primarily used as a hardening agent in alloys, most notably beryllium copper. Commercial use of beryllium metal presents technical challenges due to the toxicity (especially by inhalation) of beryllium-containing dusts.
4
9.012
Be
Beryllium
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Form
Type
Formula
Powder
Can't find what you are looking for?
B2-10002-P
BeO Powder <10ćm 99.5% Pure
Beryllium oxide
6.1 UN1566 PGII
B2-10008-P
Be2C -200 Mesh 98% Pure
Beryllium Carbide
B2-10009-P
BeF2 -80 mesh 98%+ pure
Beryllium fluoride
B2-10010-P
Be3N2 -60 Mesh 99% Pure
Beryllium Nitride
6.1 UN1566 PG II
B2-10011-P
BeO -200 Mesh 99.95% Pure
Beryllium Oxide
6.1 UN1566 PG II
B2-10013-P
BeS -100 Mesh 99% Pure
Beryllium Sulphide
4.1 UN3179 PG II
B2-10014-P
BeF2 Powder <50ćm 99.5% Pure
Beryllium fluoride
6.1 UN1566 PGII
Sputtering Targets 25.4 - 101.6mm diameter
Can't find what you are looking for?
B2-9002-D1
BeO 25.4mm dia. x 3.18mm Tk 99% Pure
Beryllium oxide
Beryllium is relatively rare element in both the Earth and the universe, due to the fact that it is not formed in conventional stellar nucleosynthesis. The element is not known to be necessary or useful for either plant or animal life.
Symbol
Ba
Atomic number
56
No. of naturally occurring isotopes
7
Atomic weight
137.33
Electronic configuration
[Xe] 6s2
Ionization energy/kJmol I
502.7
II
965
Metal radius/pm
222
Ionic radius/pm (6-coord)
13.5
Density (20°C)/gcm-3
3.62
Melting point /°C
725
Boiling point /°C
-1850
ΔHfus/kJmol-1
7.8
ΔHvap/kJmol-1
136
Electrical resistivity
(20°C)/ μohm cm
50
Eo(M2-(aq)2e- →M(S))/V
-2.91
Temperature (oC) @Vap. Pressure
10-8 Torr
710
10-6 Torr
878
10-4 Torr
1000
Techniques
Electron Beam
Excellent
Crucible
Graphite & Vitreous Graphite
Coil
Tungsten
Boat
Tantalum & Tungsten
Remarks
Wets W, Mo & Ta. Metal powder & oxides are toxic. Evaporates easily.