Bismuth, Bi

Bismuth is a chemical element that has the symbol Bi and atomic number 83. This heavy, brittle, white crystalline trivalent poor metal has a pink tinge and chemically resembles arsenic and antimony. Of all the metals, it is the most naturally diamagnetic, and only mercury has a lower thermal conductivity.

Bismuth compounds are used in cosmetics and in medical procedures. As the toxicity of lead has become more apparent in recent years, alloy uses for bismuth metal as a replacement for lead have become an increasing part of bismuth's commercial importance.

Technical Data
Symbol Bi Density (25°C)/gcm-3 9.808
Atomic number 83 Melting point /°C 271.4
Atomic weight 208.9804 Boiling point /°C 1564
Electronic configuration [Xe] 4f45d106s26p3 rcov(MIII single bond)/pm 150
Ionization energy/MJmol-1 I 0.703 rionic(6-coordinate)( MIII)/pm 103
II 1.61 (6-coordinate)(MV)/pm 76
III 2.466 Hardness (Mohs)  
Sum (I+II+III)/MJmol'' 4.779 Electrical resistivity  
Sum (IV+V)/MJmol' 9.779 (20°C)/ μohm cm 120
Electronegativity χ 1.9 Contraction on freezing/% -3.32
Evaporation Techniques
Temperature (oC) @Vap. Pressure Techniques Remarks
10-8 Torr 10-6 Torr 10-4 Torr Electron Beam Crucible Coil Boat
330 410 520 Excellent Al2O3 & Vitreous Graphite Tungsten Molybdenum, Tantalum, Al2O3 & Tungsten Vapors are toxic, High resistivity. No shorting of baskets

Evaporation Materials
B3-5000-M Ingot (Please ask for sizes)
B3-5001-M pellets 6mm diameter x 3mm long
B3-5002-M pellets 6mm diameter x 6mm long
B3-5003-M pieces 1-12mm
B3-5005-M shot 3mm
B3-5011-M pieces 1-5mm
Powder
B3-10000-P -100 mesh
B3-10001-P -200 mesh
B3-10002-P -325 mesh
Rods
B3-2000-R 0.125" (3.175mm)
B3-2001-R 0.250" (6.35mm)
B3-2002-R 0.500" (12.7mm)
B3-2003-R 0.625" (15.88mm)
B3-2004-R 0.750" (19.05mm)
B3-2005-R 1" (25.4mm)
B3-2006-R 11mm
Sheet
B3-4000-S 0.125" (3.175mm)
B3-4001-S 0.250" (6.35mm)
B3-4002-S 0.375" (9.525mm)
B3-4003-S 0.500" (12.7mm)
B3-4004-S 0.750" (19.05mm)
B3-4005-S 1" (25.4mm)