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Overview of Nano Bismuth Powder
Nano-bismuth particles are metal nanoparticles. Depending on the size of the particles, the color varies from dark gray to black. The newly produced bismuth is a silvery, crystalline, fragile metal that is usually pink in the air. Bismuth is the most diamagnetic element, and its thermal conductivity is lower than any metal except mercury. It has high resistance and the highest Hall coefficient.

Nano-bismuth powder is synthesized by solvothermal reduction method, which is based on the chemical reduction of Bi3+ with ethylene glycol as solvent and reducing agent. Bi-based nanoparticles are grown from a dispersion solution of bismuth salt. Nano bismuth particles are a kind of light gray non-ferrous metal powder, which is widely used and mainly used for preparing bismuth products, bismuth alloys and bismuth compounds.
Application of nano bismuth powder
Lubricant additives
Bismuth is still a commonly used additive in industrial lubrication. It works effectively and does not cause toxicity or other hazards to specified compounds. When 0.1% to 0.3% of nano-bismuth powder is added to the grease during the friction process, the friction surface forms a self-lubricating mask to protect the machine, which significantly improves the performance of the grease.
Nuclear heat transfer
The unique combination of magnetic, thermal and other properties of bismuth nanoparticles makes this powder the best heat transfer medium for nuclear reactors, and only the most suitable materials can play a role. As a testament to the potential of this field, it is difficult to find impressive applications for more people.
Bismuth has a smaller thermal neutron absorption cross section, lower melting point and higher boiling point, making it a heat transfer medium for nuclear reactors.
Medical imaging agent
Bismuth nanopowders can be used as an effective contrast agent for medical imaging and certain forms of cancer treatment, making it one of the most widely studied nanoparticles. Further medical applications are currently being studied and offer great hope.
Metallurgical industry
Nano-bismuth powder has been widely used in metallurgy. In metallurgy, bismuth is an effective alloying agent for the production and connection of certain metals. Nano-bismuth powder is used in the production of cast iron, steel and aluminum alloy. Additives can improve the cutting performance of the alloy.
Humid environment will affect the dispersion performance and use effect of nano bismuth powder. Therefore, the nano-bismuth powder should be sealed in a vacuum package and stored in a cool and dry room, and the nano-bismuth powder should not be exposed to the air.
Nano bismuth powder price
The price of nano bismuth powder will vary with the production cost, transportation cost, international situation, exchange rate, and supply and demand of nano bismuth powder. Tanki New Materials Co., Ltd. aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for nano bismuth powder, please feel free to send an inquiry to get the latest price of nano bismuth powder.
Nano Bismuth Powder Supplier
As a global supplier of nano-bismuth powder, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of powder materials (including boron carbide, aluminum carbide, titanium carbide, etc.), high-purity targets, functional ceramics and structural devices, and provides OEM services.
| echnical Parameter of Bismuth Nanoparticles Nano Bi Powder | ||||||
| Product Name | MF | Purity | Particle Size | Bulk Density | SSA | Color |
| Bismuth Nanoparticles | Bi | 99% | 80nm | 0.05-0.7 g/cm3 | 1-7 m2/g | Black |
| Bismuth Nanoparticles Properties | |
| Other Names | Bismuth Nanopowder, bismuth nanocrystals, Nano Bi, nanobismuth |
| CAS No. | 7440-69-9 |
| Compound Formula | Bi |
| Molecular Weight | 208.98 |
| Appearance | Gray to black Powder |
| Melting Point | 251 °C |
| Boiling Point | 1420-1560 °C |
| Bulk Density | 0.05-0.7 g/cm3 |
| Trun Density | N/A |
| Solubility in H2O | N/A |
| Poisson's Ratio | 0.33 |
| Vickers Hardness | N/A |
| Thermal Expansion | (25 °C) 13.4 µm·m-1·K-1 |
| Young's Modulus | 32 GPa |
| Bismuth Nanoparticles Health & Safety Information | |
| Signal Word | Warning |
| Hazard Statements | N/A |
| Flash Point | Not applicable |
| Hazard Codes | H228 |
| Risk Codes | 11 |
| Safety Statements | 16 |
| RTECS Number | EB2600000 |
| Transport Information | UN 3089 4.1/PG 2 |
| WGK Germany | nwg |
