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Aluminium, Al

Aluminium or aluminum is a silvery white and ductile member of the boron group of chemical elements. It has the symbol Al; its atomic number is 13. It is not soluble in water under normal circumstances. Aluminium is the most abundant metal in the Earth's crust, and the third most abundant element overall, after oxygen and silicon. It makes up about 8% by weight of the Earth’s solid surface. Aluminium is too reactive chemically to occur in nature as the free metal. Instead, it is found combined in over 270 different minerals. The chief source of aluminium is bauxite ore.

Aluminium is remarkable for its ability to resist corrosion (due to the phenomenon of passivation) and its light weight. Structural components made from aluminium and its alloys are vital to the aerospace industry and very important in other areas of transportation and building. Its reactive nature makes it useful as a catalyst or additive in chemical mixtures, including being used in ammonium nitrate explosives to enhance blast power.

Technical Data
Symbol	Al	Density (20°C)/gcm³'	2.6989
Atomic number	13	Melting point / °C	660.37
No. of naturally occurring isotopes	1	Boiling point / °C	2467
Atomic weight	26.98154	ΔH_fus/kJmol^-1	2.75
Electronic configuration	[Ne]3s²3p¹	ΔH_vap/kJmol^-1	10.50
Ionization energy/kJmol^-1 I	577.4	ΔH_{f(monoatomic gas)/}kJmol^-1	290.8
II	1816.1	Electronegativity χ	321.7
III	2744.1	Electrical resistivity/µohm cm	2.6555
Metal radius/pm	143	E₀ (M³⁺(aq) +3e-→M_(S))/V	-1.66
Ionic radius/pm (6-coord)	53.5	E₀ (M+(aq) +e-→M_(S))/V	0.55
Electronegativity %	1.5

Evaporation Techniques
Temperature (^oC) @Vap. Pressure			Techniques				Remarks
10^-8 Torr	10^-6 Torr	10^-4 Torr	Electron Beam	Crucible	Coil	Boat	Remarks
677	821	1010	Excellent	BN, Glassy coated graphite	W	W (thick)	Alloys and wets. Corrosive when molten. Thick W boat 0.015” - 0.020” recommended

Evaporation Materials
A1-5000-M granules 2-10mm
A1-5002-M Ingot (please ask for sizes)
A1-5003-M pellets 6mm diameter x 9mm long
A1-5004-M pellets 9mm diameter x 9mm long
A1-5006-M pellets 6mm diameter x 6mm long
A1-5007-M pellets 6mm diameter x 3mm long
A1-5010-M pellets 6mm diameter x 12mm long
A1-5027-M pellets 3mm diameter x 3mm long
A1-5029-M pieces 2-4mm

The foils are available in either rectangular or circular shape. Please enter width and length or diameter of the required foil.

Foil
A1-3000-F 0.001" (0.025mm)
A1-3001-F 0.002" (0.051mm)
A1-3002-F 0.003" (0.076mm)
A1-3003-F 0.004" (0.102mm)
A1-3004-F 0.005" (0.127mm)
A1-3005-F 0.006" (0.152mm)
A1-3006-F 0.007" (0.178mm)
A1-3007-F 0.008" (0.203mm)

Powders
A1-10001-P -40 mesh
A1-10004-P -100 mesh, 325 mesh
A1-10005-P -200 mesh
A1-10007-P <5 microns

Rods
A1-2000-R 0.0625" (1.588mm)
A1-2001-R 0.125" (3.175mm)
A1-2002-R 0.250" (6.35mm)
A1-2003-R 0.500" (12.7mm)
A1-2004-R 0.625" (15.88mm)
A1-2005-R 0.750" (19.05mm)
A1-2006-R 1" (25.4mm)

Sheet
A1-4001-S 0.015" (0.381mm)
A1-4002-S 0.020" (0.508mm)
A1-4003-S 0.030" (0.762mm)
A1-4004-S 0.040" (1.0mm)
A1-4005-S 0.050" (1.27mm)
A1-4006-S 0.060" (1.524mm)
A1-4007-S 0.0625" (1.588mm)
A1-4008-S 0.125" (3.175mm)
A1-4009-S 0.250" (6.35mm)
A1-4010-S 0.375" (9.525mm)
A1-4011-S 0.500" (12.7mm)
A1-4012-S 0.750" (19.05mm)
A1-4013-S 1" (25.4mm)

Wire
A1-1000-W 0.001" (0.025mm)
A1-1001-W 0.002" (0.050mm)
A1-1003-W 0.004" (0.1mm)
A1-1007-W 0.008" (0.2mm)
A1-1011-W 0.020" (0.5mm)
A1-1013-W 0.040" (1.0mm)
A1-1017-W 0.080" (2.0mm)

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