Platinum, Pt, CP Grade, Annealed

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Platinum, Pt, CP Grade, Annealed
Categories:	Metal; Nonferrous Metal; Precious Metal; Platinum Alloy; Pure Element
Material Notes:	CP Grade (Commercially Pure) is 99.95% pure.
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Physical Properties	Metric	English	Comments

Density	21.45 g/cc	0.7749 lb/in³

Chemical Properties	Metric	English	Comments
Atomic Mass	195.078	195.078	1995
Atomic Number	78	78
Thermal Neutron Cross Section	9.0 barns/atom	9.0 barns/atom
X-ray Absorption Edge	0.15817 Å	0.15817 Å	K
	0.89405 Å	0.89405 Å	L_I
	0.93484 Å	0.93484 Å	L_II
	1.07306 Å	1.07306 Å	L_III
Electrode Potential	1.2 V	1.2 V
Electronegativity	2.2	2.2	Pauling
Ionic Radius	0.650 Å	0.650 Å	Crystal Ionic Radius for Valence +4
	0.800 Å	0.800 Å	Crystal Ionic Radius for Valence +2
Electrochemical Equivalent	1.816 g/A/h	1.816 g/A/h

Mechanical Properties	Metric	English	Comments
Hardness, Vickers	40	40
Tensile Strength, Ultimate	125 - 165 MPa	18100 - 23900 psi
Elongation at Break	35 %	35 %	in 50 mm
Tensile Modulus	171 GPa	24800 ksi	static
Poissons Ratio	0.39	0.39
Shear Modulus	62.0 GPa	8990 ksi	Calculated value

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000106 ohm-cm	0.0000106 ohm-cm	Temperature Coefficient of resistivity is 0.0039/K.
Magnetic Susceptibility	0.0000011	0.0000011	cgs/g

Thermal Properties	Metric	English	Comments
Heat of Fusion	113 J/g	48.6 BTU/lb
Heat of Vaporization	2407 J/g	1035 BTU/lb
CTE, linear	9.10 µm/m-°C @Temperature 20.0 °C	5.06 µin/in-°F @Temperature 68.0 °F
Specific Heat Capacity	0.134 J/g-°C	0.0320 BTU/lb-°F
Thermal Conductivity	69.1 W/m-K	480 BTU-in/hr-ft²-°F
Melting Point	1769 °C	3216 °F
Boiling Point	3825 °C	6917 °F

Optical Properties	Metric	English	Comments
Emissivity (0-1)	0.30	0.30	650 nm
	0.152 @Temperature 1000 °C	0.152 @Temperature 1830 °F	Total Hemispherical
Reflection Coefficient, Visible (0-1)	0.70	0.70	bulk Pt; 589 nm

Component Elements Properties	Metric	English	Comments
Platinum, Pt	99.95 %	99.95 %

References for this datasheet.

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