Bismuth Metal Powder

Description

Bismuth metal powder typically appears as a greyish powder with a metallic luster, which made from Bismuth ingot. Bismuth metal powde’s low toxicity, combined with its useful physical properties like low melting point and density, make it suitable for a range of applications across different industries.

Bismuth powders are available in 100 mesh, 200 mesh, 325 mesh, 500 mesh, and nano sizes, produced through ball milling and atomization methods.

Basic Information

Product Name	Bismuth Metal Powder
Appearance	gray powder form
Size	100-500 mesh Nano Size
Molecular Formula	Bi
Melting Point	271.3°C
Boiling Point	1560±5℃
CAS No.	7440-69-9
EINECS No.	231-177-4
MOQ	1KG

The production processes of bismuth powder mainly include ball milling and atomization. Bismuth powder produced by ball milling has irregular particle shapes, a wide particle size distribution, a brown color, and high oxygen content. Bismuth powder produced by atomization is nearly spherical in shape, with uniform particle distribution. Depending on the process, it can appear grey or black, with low oxygen content and superior performance.

Nano bismuth powder is prepared by condensation, characterized by high purity, high sphericity, low bulk density, uniform particles, narrow distribution range, large specific surface area, and good sintering shrinkage.

Spherical Bismuth Powder with different particle sizes is dark gray to black. Spherical bismuth powder can be used as cast iron, steel, and aluminum alloy additive, improving alloy cutting performance.

Nano and ultrafine bismuth powders can be used as lubricant additives: Adding 0.1-0.5% of nano bismuth powder to lubricating oils and greases allows the friction surfaces to form self-lubricating and self-repairing films during friction processes, thereby enhancing the performance of the lubricants.

Item	Specification	Processing Method	MOQ
Spherical Bi Powder	100, 200, 325, 500mesh 4N 5N	Atomization	1KG
Bismuth Powder	100 200 325, 500mesh 4N 5N	Ball Milling	1KG
Bismuth Powders	Nano Size 3N	Atomization	1KG

Applications:

Bismuth is widely used in various bismuth alloy products, as an additive in steel plant metallurgy, and in petroleum exploration perforating charges. It is also used in low-temperature solders, plastic fillers, precision castings, electroplating wheels, grinding discs, and knife sharpening. Bismuth is utilized in high-purity semiconductor materials and the preparation of high-purity bismuth compounds. It also serves as a coolant in nuclear reactors and as an analytical reagent. Additionally, it is used as a metal nano lubricant additive, significantly improving the performance of lubricating grease. Due to its small thermal neutron absorption cross-section, low melting point, and high boiling point, bismuth is also employed in magnetic materials.

1. Nano-lubricating additives: Enhance grease performance by incorporating 0.1% to 0.5% nano bismuth powder. It forms a self-lubricating friction surface and self-repair film, effectively reducing friction.
2. Metallurgical additives: Improve the machinability of iron, steel, and aluminum alloys when nano bismuth powder is used as an additive.
3. Magnetic materials: With its high melting and boiling points and low thermal neutron absorption cross section, nano bismuth powder serves as a heat transfer medium in nuclear reactors.
4. Medical applications: Acts as an effective contrast agent in medical imaging and is researched for potential applications in cancer treatment.
5. Industrial uses: Essential in the production of bismuth alloys, welding electrodes, oil exploration charges, and low melting point solders and fusible alloys.

Our Advantages

• Less content of heavy metals like Cu, Pb, As, Sb, Cd, Ni, Cr.
• Provide a complete set of test reports including CoA, PSD, SEM for each batch.
• Free Sample Support for preliminary test, secondary testing and triple test to verify the consistent quality of different batches.
• A variety of particle sizes can be selected, especially within the range of intervals, such as 2-4 micron.
• According to the low range of raw material cost, our quotation is calculated to save customer costs.
• Sealed package to prevent moisture and pollution.
• Technical support within 60 minutes by e-mail, calling or instant message.
• ISO9001 and ISO14001 certificated manufacturer.

Storage Conditions:

This product should be stored in a sealed container in a dry and cool environment. It should not be exposed to air for long periods to prevent moisture absorption, which could lead to agglomeration and affect dispersion performance and usage. Avoid heavy pressure, keep it away from oxidizing agents, and transport it as ordinary goods.

Q&A

Q1: What are the primary methods used to produce bismuth metal powder?

A1: Bismuth metal powder is primarily produced through ball milling and atomization methods. Ball milling results in irregular particle shapes with a wide size distribution and higher oxygen content, while atomization produces nearly spherical particles with uniform distribution, low oxygen content, and superior performance characteristics.

Q2: What are the typical appearances of bismuth metal powder produced by ball milling and atomization?

A2: Bismuth powder from ball milling appears brown in color with irregular shapes, while atomized bismuth powder is grey or black and features spherical particles.

Q3: How does nano bismuth powder differ from other particle sizes in terms of properties and applications?

A3: Nano bismuth powder is characterized by high purity, high sphericity, low bulk density, uniform particles with a narrow size distribution, a large specific surface area, and good sintering shrinkage. It is suitable for applications requiring enhanced performance such as lubricant additives and materials with specific sintering properties.

Q4: How can spherical bismuth powder be utilized in industrial applications?

A4: Spherical bismuth powder, depending on its particle size, is used as an additive in cast iron, steel, and aluminum alloys to improve cutting performance. Its spherical shape and uniform distribution make it effective in various alloy applications.