|
PLATINUM
(Pt)
GENERAL
PROPERTIES
|
Symbol:
|
Pt
|
|
Atomic
Number:
|
78
|
|
Atomic
Weight:
|
195.09
|
|
Density:
|
21.45
gm/cc
|
|
Melting
Point:
|
1772
oC
|
|
Boiling
Point:
|
3827
oC
|
|
Thermal
Conductivity:
|
0.716
W/cm/oK
@ 298.2 oK
|
|
Electrical
Resistivity:
|
10.6
microhm-cm @ 20 oC
|
|
Electronegativity:
|
2.2
Paulings
|
|
Specific
Heat:
|
0.0317
Cal/g/oK
@ 25 oC
|
|
Heat
of Vaporization:
|
122
K-Cal/gm atom at 3827 oC
|
|
Heat
of Fusion:
|
4.70
Cal/gm mole
|
MATERIAL
OVERVIEW
Characteristics:
Silvery white ductile metal. Insoluble in mineral and
organic acids, soluble in aqua regia. Attacked by
fused alkalies. Does not corrode or tarnish. Heated
platinum absorbs large volumes of hydrogen. It is also
a strong complexing agent. As a catalyst it is
abnormally sensitive to poisons. Nontoxic.
Hazards:
Flammable in powdered form. Soluble salts are highly
toxic by inhalation. Tolerance (as Pt), 0.002 mg/m3
of
air.
TYPICAL
ANALYSES
Impurities
in ppm
|
Material
/ Purity:
|
3N5
|
5N
|
|
Ag
|
<50.0
|
|
|
Al
|
<20.0
|
|
|
As
|
<1.0
|
|
|
Au
|
<20.0
|
|
|
B
|
<5.0
|
|
|
Ba
|
<5.0
|
|
|
Bi
|
<1.0
|
|
|
Ca
|
<5.0
|
<1
|
|
Cd
|
<5.0
|
|
|
Co
|
<5.0
|
|
|
Cr
|
<15.0
|
|
|
Cu
|
<15.0
|
<1
|
|
Fe
|
<50.0
|
<1
|
|
Hg
|
<5.0
|
|
|
Ir
|
<50.0
|
|
|
Mg
|
<1.0
|
<1
|
|
Mn
|
<1.0
|
|
|
Mo
|
<1.0
|
|
|
Ni
|
<10.0
|
|
|
Os
|
<20.0
|
|
|
Pb
|
<5.0
|
|
|
Pd
|
<100.0
|
|
|
Rh
|
<50.0
|
|
|
Ru
|
<1.0
|
|
|
Sb
|
<1.0
|
|
|
Si
|
<10.0
|
<1
|
|
Sn
|
<20.0
|
|
|
Te
|
<5.0
|
|
|
Ti
|
<1.0
|
|
|
Zn
|
<10.0
|
|
|
Zr
|
<1.0
|
|
WIRE
|
Material
|
Purity
|
|
Platinum
Wire .001 to .090”
|
3N5,
4N, 5N
|
Wire
is spooled to order and sold by the foot or meter.
ROD
|
Material
|
Purity
|
|
Platinum
Rod .0625”
|
3N5,
4N, 5N
|
|
Platinum
Rod .125”
|
3N5,
4N, 5N
|
|
Platinum
Rod .250”
|
3N5,
4N, 5N
|
|
Platinum
Rod .500”
|
3N5,
4N, 5N
|
|
Platinum
Rod .625”
|
3N5,
4N, 5N
|
|
Platinum
Rod .750”
|
3N5,
4N, 5N
|
|
Platinum
Rod 1”
|
3N5,
4N, 5N
|
Rod
is cut to order and sold by the inch or foot.
FOIL
|
Material
|
Purity
|
|
Platinum
Foil .001”
|
3N5,
4N, 5N
|
|
Platinum
Foil .002”
|
3N5,
4N, 5N
|
|
Platinum
Foil .003”
|
3N5,
4N, 5N
|
|
Platinum
Foil .004”
|
3N5,
4N, 5N
|
|
Platinum
Foil .005”
|
3N5,
4N, 5N
|
|
Platinum
Foil .006”
|
3N5,
4N, 5N
|
|
Platinum
Foil .007”
|
3N5,
4N, 5N
|
|
Platinum
Foil .008”
|
3N5,
4N, 5N
|
|
Platinum
Foil .009”
|
3N5,
4N, 5N
|
Foil
is cut to order and sold by the square inch or square
foot.
SHEET
|
