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Platinum Classic Flat Bottomed Crucible with Supporting Ring
Available Configurations
Properties common to all products in this list
Platinum Classic Flat Bottomed Crucible with Supporting Ring (99.99% purity) incorporates an integral supporting ring around the crucible body, designed for stable positioning in ring-type furnace inserts, muffle furnace support accessories, and analytical balances where the crucible must be held at a defined height and orientation during heating or weighing. Available in OD 35 mm and OD 37 mm formats, it is suited to gravimetric analytical workflows where precise, reproducible positioning of the crucible within the analytical instrument or furnace is a method requirement. Its 99.99% pure platinum construction ensures no contribution to measured weight change during Loss on Ignition, ash determination, or residue on ignition analysis under pharmacopoeial or industrial methods. Typical applications include gravimetric analysis in pharmaceutical QC, LOI analysis in cement and ceramics laboratories, and any high-temperature analytical workflow where furnace support geometry requires a crucible with an integral positioning ring.
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Material Properties
Atomic Properties
| Element | Value |
|---|---|
| Atomic number | 78 |
| Crystal structure | Face centred cubic |
| Electronic structure | Xe 4f¹⁴ 5d⁹ 6s¹ |
| Valences shown | 1,2,3,4 |
| Atomic weight( amu ) | 195.08 |
| Thermal neutron absorption cross-section( Barns ) | 9 |
| Photo-electric work function( eV ) | 5.3 |
| Natural isotope distribution( Mass No./% ) | 192/ 0.79 |
| Natural isotope distribution( Mass No./% ) | 196/ 25.30 |
| Natural isotope distribution( Mass No./% ) | 190/ 0.01 |
| Natural isotope distribution( Mass No./% ) | 195/ 33.80 |
| Natural isotope distribution( Mass No./% ) | 198/ 7.20 |
| Natural isotope distribution( Mass No./% ) | 194/ 32.90 |
| Atomic radius - Goldschmidt( nm ) | 0.138 |
| Ionisation potential( No./eV ) | 1/ 9.0 |
| Ionisation potential( No./eV ) | 2/ 18.6 |
Mechanical Properties
| Element | Value |
|---|---|
| Material condition | Hard |
| Material condition | Soft |
| Poisson's ratio | 0.39 |
| Poisson's ratio | 0.39 |
| Bulk modulus( GPa ) | 276 |
| Bulk modulus( GPa ) | 276 |
| Tensile modulus( GPa ) | 170 |
| Tensile modulus( GPa ) | 170 |
| Hardness - Vickers( kgf mm⁻² ) | 40 |
| Hardness - Vickers( kgf mm⁻² ) | 100 |
| Tensile strength( MPa ) | 200-300 |
| Tensile strength( MPa ) | 125-150 |
| Yield strength( MPa ) | 14-35 |
| Yield strength( MPa ) | 185 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 10.58@20°C |
| Temperature coefficient( K⁻¹ ) | 0.00392@0-100°C |
Physical Properties
| Element | Value |
|---|---|
| Boiling point( C ) | 3827 |
| Density( gcm⁻³ ) | 21.45@20°C |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 1772 |
| Latent heat of evaporation( J g⁻¹ ) | 2405 |
| Latent heat of fusion( J g⁻¹ ) | 101 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 133@025°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 71.6@0-100°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 9@0-100 |