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Platinum, Pt

Platinum is a chemical element with the atomic symbol Pt and an atomic number of 78. It is in group 10 of the Periodic Table of Elements. A heavy, malleable, ductile, precious, gray-white transition metal, platinum is resistant to corrosion and occurs in some nickel and copper ores along with some native deposits. Platinum is used in jewelry, laboratory equipment, electrical contacts, dentistry, and automobile emissions control devices. Platinum bullion has the ISO currency code of XPT.

Technical Data
Symbol	Pt	Density (20°C)gcm^-3	21.41
Atomic number	78	Melting point /°C	1769
No. of naturally occurring isotopes	6*	Boiling point /°C	4170
Atomic weight	195.08(+/-0.03)	ΔH_fus/kJmol^-1	19.7(+/-2.1)
Electronic configuration	[Xe]4f^J45d'6s'	ΔH_vap/kJmol^-1	469(+/-25)
Metal radius(12-coordinate)/pm	138.5	ΔH_{f(monoatomic gas)}/kJmol^-1	545(+/-21)
Effective ionic radius(6-coord)/pm V	57	Electrical resistivity
Effective ionic radius(6-coord)/pm IV	62.5	(20°C)/μohm cm	9.85
Effective ionic radius(6-coord)/pm III	-	Electronegativity χ	2.2
Effective ionic radius(6-coord)/pm II	80	*all have zero nuclear spin except ¹⁹⁵Pt (33.8% abundance) which has a nuclear spin quantum no. ½

Evaporation Techniques
Temperature (^oC) @Vap. Pressure			Techniques				Remarks
10^-8 Torr	10^-6 Torr	10^-4 Torr	Electron Beam	Crucible	Coil	Boat	Remarks
1292	1492	1747	Excellent	Graphite, ThO₂	Tungsten	Tungsten	Alloys with metals. Films soft poor adhesion.

Evaporation Materials
P3-5002-M pellets 6mm diameter x 6mm long
P3-5003-M pellets 6mm diameter x 12mm long
P3-5005-M pieces 1-3mm
P3-5009-M pieces 2-8mm
P3-5011-M pellets 3mm diameter x 3mm long

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

Foil
P3-3000-F 0.001" (0.025mm)
P3-3001-F 0.002" (0.050mm)
P3-3003-F 0.004" (0.10mm)
P3-3005-F 0.006" (0.152mm)
P3-3007-F 0.008" (0.20mm)

Powder
P3-10001-P sponge 90 microns and less

Rods
P3-2000-R 0.0625" (1.58mm)
P3-2001-R 0.125" (3.175mm)
P3-2002-R 0.250" (6.35mm)
P3-2004-R 0.500" (12.7mm)
P3-2005-R 0.625" (15.88mm)
P3-2006-R 0.750" (19.05mm)
P3-2007-R 1" (25.4mm)

Sheet
P3-4001-S 0.015" (0.38mm)
P3-4002-S 0.020" (0.5mm)
P3-4003-S 0.030" (0.76mm)
P3-4004-S 0.040" (1mm)
P3-4006-S 0.060" (1.5mm)
P3-4008-S 0.125" (3.175mm)
P3-4009-S 0.250" (6.35mm)
P3-4010-S 0.375" (9.525mm)
P3-4011-S 0.500" (12.7mm)
P3-4012-S 0.750" (19.05mm)
P3-4013-S 1" (25.4mm)

Wire
P3-1000-W 0.001" (0.025mm)
P3-1001-W 0.002" (0.05mm)
P3-1003-W 0.004" (0.1mm)
P3-1005-W 0.006" (0.152mm)
P3-1007-W 0.008" (0.203mm)
P3-1011-W 0.020" (0.5mm)
P3-1013-W 0.040" (1.0mm)
P3-1017-W 0.080" (2.0mm)

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