Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Product Profile
- Full Name: Silver Metal
- Aliases: Elemental Silver, Metallic Silver
- CAS Number: 7440-22-4
- EINECS: 231-131-3
- Molecular Formula: Ag
- Molecular Weight: 107.87
- Chemical Classification: Precious metal inorganic raw material, conductive metal material, catalyst substrate, electronic industrial material
- Core Advantages
Excellent electrical & thermal conductivity, superior ductility, stable chemical property at room temperature, good antibacterial performance. Multiple specifications available: silver ingot, silver shot, silver powder, silver flake, silver wire; high purity grades widely used in electronics, catalysis, jewelry, medical and coating industries.
2. Physical & Chemical Properties
2.1 Physical Index
- Appearance: Bright silvery-white metallic solid; powder is gray silver powder
- Odor: Odorless
- Solubility: Insoluble in water, dilute non-oxidizing acids; soluble in nitric acid, hot concentrated sulfuric acid, aqua regia
- Density (20℃): 10.49 g/cm3
- Melting Point: 961.78 °C
- Boiling Point: 2162 °C
- Hardness: Soft malleable metal, easy to roll into thin foil or draw fine wire
- Conductivity: Top electrical conductivity among all metals
2.2 Chemical Properties
- Oxidation Resistance: Stable in dry air at room temperature; reacts with hydrogen sulfide in humid air to generate black silver sulfide tarnish
- Acid Reaction: Dissolves in oxidizing strong acids to form silver salts; no reaction with dilute hydrochloric acid, dilute sulfuric acid
- Antibacterial Characteristic: Silver ion released from metal surface inhibits bacterial reproduction, broad-spectrum antibacterial activity
- Alloy Performance: Easy to form alloy with copper, palladium, gold, tin for welding, electronic contact materials
- High Temperature Reaction: Reacts with halogen, sulfur, phosphorus under heating to produce corresponding silver compounds
3. Main Application Fields
3.1 Electronic & Electrical Industry (Core Usage)
Conductive silver paste for PCB, chip packaging, solar cell electrode; electrical contact points, conductive coating, silver wire for precision electronic components, semiconductor conductive material.
3.2 Catalysis Industry
Metal catalyst carrier for organic synthesis, hydrogenation reaction catalyst, formaldehyde oxidation, ethylene oxidation industrial catalyst raw material.
3.3 Medical & Antibacterial Materials
Antibacterial silver powder for wound dressing, medical catheter coating, antibacterial textile additive, dental silver alloy filling material.
3.4 Jewelry & Ornament Industry
Raw material for silver jewelry, silver tableware, craft ornaments; alloyed with copper to improve hardness for wearable ornaments.
3.5 Coating & Photographic Materials
Silver mirror reflective coating raw material; precursor for silver salt photographic sensitizer, conductive anti-static coating additive.
4. Quality Specification Table
| Test Item | Standard Index |
| CAS No. | 7440-22-4 |
| Molecular Formula | Ag |
| Molecular Weight | 107.87 |
| Appearance | Silvery-white metal ingot / gray silver powder |
| Melting Range | 961.78 °C |
| Purity | Industrial Grade ≥99.9%; High Purity ≥99.99% |
| Total Impurity Content | ≤0.1% (99.9 grade) |
| Forms Available | Ingot, shot, powder, flake, wire, foil |
| Bulk Package | Sealed iron drum, ton bag with anti-tarnish packaging |
| Sample Package | Sealed plastic bottle / metal tank |
| Storage Requirements | Hermetic cool dry warehouse, isolate hydrogen sulfide, sulfur-containing substances to prevent surface blackening |
| Transportation Rule | General precious metal inorganic raw material, non-hazardous goods, waterproof packaging required |
| Shelf Life | 36 months under intact sealed anti-tarnish packaging |
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