| All data is for information only------(Home) | |
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| PRODUCT DATA of Silver |
| Material | Silver |
| General Information | Silver is a soft, ductile, malleable, lustrous metal. It has the highest electrical and thermal conductivity of all metals. |
| Chemical Composition | 100Ag |
| CAS Registry ID | 7440-22-4 |
| EXPERIENCE IN PRACTICE |
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| Development Status | Commercial Product |
| Cost Range | High |
| Equivalent Designations | Ag |
| Space Experience | Good |
| PHYSICAL PROPERTIES |
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| Atomic Number | 47 |
| Atomic Weight | 108 amu |
| Work Function | 4.7 eV |
| Crystal Structure | Face centered cubic (fcc) |
| Surface Energy | 1210 to 1260 mJ/m^2 |
| Specific Gravity | 10.5 |
| ELASTIC PROPERTIES |
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| Tensile Modulus | 76 GPa |
| Shear Modulus | 27.8 GPa |
| Bulk Modulus | 100 GPa |
| Poisson Ratio | 0.37 |
| Speed of Sound (longitudinal) | 3600 m/s |
| Speed of Sound (transverse) | 1600 m/s |
| Acoustic Impedance | 380 MRayls |
| ELECTRICAL PROPERTIES |
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| Electrical Conductivity | 105 %IACS |
| THERMAL PROPERTIES |
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| Thermal Conductivity | 419 W/m.K |
| Thermal Expansion Coefficient | 19.6 μstrain/°C |
| Specific Heat | 0.234 J/g.K |
| Melting Range | 962 °C |
| RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY |
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| EMF vs SCE | -0.03 V Remark: Measured in 3.5% NaCl solution Data Quality: Design Data |
| Atomic Oxygen | Severely attacked by atomic oxygen. Not to be used on external surfaces in low earth orbit between 200 and 700 km Silver oxidised in Low Earth Orbit during STS-8 space shuttle flight |
