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̼,��, C, 0.5mm ֱ��

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��Ⱥ��:	99.95%
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Length (Round)
464-303-99	2mm

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Diameter[ֱ��]	0.5mm
Grade[�ȼ�]	Graphite
Length[��]	2mm
Particle Size[��]	Ultrafine 1-5 Microns
Purity[��]	99.95%
Typical Analysis(��ͷ��)
Al	5 PPM
Ba	1 PPM
Ca	50 PPM
Co	<5 PPM
Cr	<5 PPM
Cu	<5 PPM
Fe	5 PPM
Ni	50 PPM
Si	<5 PPM
Ti	30 PPM
V	100 PPM
Zr	<20 PPM
Thermal Properties(��)
Coefficient of thermal expansion ( x10?? K?? )	0.600 - 4.300 @0-100��
Melting point ( C )	3650.00
Specific heat ( J K?? kg?? )	712.0 @25��
Thermal conductivity ( W m?? K?? )	80.00 - 240.00 @0-100��
Mechanical Properties(��е��)
Bulk modulus ( GPa ) ( Diamond )	542.0
Bulk modulus ( GPa ) ( Graphite )	33.0
Hardness - Mohs ( Diamond )	10.00
Hardness - Mohs ( Graphite )	0.50 - 1.00
Material condition	Diamond
Material condition	Graphite
Tensile modulus ( GPa ) ( Graphite )	4.80
Atomic Properties(ԭ��)
Atomic number	6
Atomic weight ( amu )	12.01100
Crystal structure	Hexagonal/Diamond
Electronic structure	He2s?2p?
Ionisation potential ( No./eV )	6 / 490
Ionisation potential ( No./eV )	4 / 64.5
Ionisation potential ( No./eV )	1 / 11.26
Ionisation potential ( No./eV )	3 / 47.9
Ionisation potential ( No./eV )	2 / 24.38
Ionisation potential ( No./eV )	5 / 392
Natural isotope distribution ( Mass No./% )	12 / 98.89
Natural isotope distribution ( Mass No./% )	13 / 1.11
Photo-electric work function ( eV )	4.80
Thermal neutron absorption cross-section ( Barns )	0.0034
Valences shown	2 , 3, 4
Physical Properties(��)
Boiling point ( C )	5000
Density ( g cm?? )	2.250 @20��
Electrical Properties(��)
Electrical resistivity ( ��Ohmcm )	1375@0��
Thermal emf against Pt (cold 0C - hot 100C) ( mV )	0.70

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	>10mm	��5%
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