High Purity Bismuth Bi powder cas 7440-69-9, 99%

Overview of Bismuth Powder ：

Bismuth powder is usually silver-white or off-white with a metallic luster. Depending on the specific preparation process, its shape can be spherical, cube, diamond, etc.. Generally, the finer the particle size and the larger the specific surface area, the better the physical and chemical properties of bismuth powder. 

The density of bismuth powder is about 9.7g/cm3. Porosity refers to the percentage of pores in the total volume of bismuth powder, which affects the hygroscopicity, electrical conductivity, and plasticity of bismuth powder. Bismuth powder has high stability to air, water, alkali, and other substances at room temperature. It is not easily oxidized or chemically reactive with these substances. Bismuth has good corrosion resistance and is not easily affected by the atmosphere and certain chemicals. It has a good resistance to corrosion against sulfuric acid, nitric acid, hydrochloric acid, and other acids. It is also toxic, and excessive inhalation or ingestion may lead to poisoning. Therefore, when producing and using bismuth powder, safety measures must be taken to avoid human contact and inhalation.

Features of Bismuth Powder ：

High purity: Bismuth powder is very high, usually reaching more than 99.9% and even 99.999%. This high purity makes bismuth powder excellent in many applications.

Good electrical and thermal conductivity: Although bismuth powder is not as good as some other metals in terms of electrical and thermal conductivity, it still has some electrical and thermal conductivity, which makes it useful in some electronic and thermal applications.

Low melting point: The melting point of bismuth powder is relatively low, around 271°C. This property makes it very useful in some applications requiring low-temperature melting.

Easy processing: Bismuth powder has good plasticity and flexibility and is easy to carry out various processing operations, such as casting, forging, rolling, etc.

Stability: Bismuth powder has good stability at room temperature and is not easy to oxidize or corrode.

Advantages of bismuth powder: 

Versatility: For example, it can be used to manufacture electronic products such as resistors, thermistors, and solar cells, and it can also be used in metallurgy, chemical industry, medicine, environmental protection, and other fields. This versatility makes bismuth powder a very useful material.

Environmentally friendly: Bismuth powder is relatively environmentally friendly in production. At the same time, bismuth powder can also be used as a recyclable material with greater environmental cost-effectiveness.

Application of Bismuth Powder ：

Electronics Industry: 

The application of bismuth powder in the electronics industry is mainly an additive in solder and electronic paste. These pastes manufacture electronic components such as circuit boards, conductors, and resistors. By adding bismuth powder, electronic paste's electrical conductivity and stability can be improved to ensure electronic components' manufacturing quality and reliability. In addition, bismuth powder can also be used as the main component of conductor paste for the preparation of thin film integrated circuits and hybrid integrated circuits. 

Superalloy: 

Bismuth powder can be used as one of the alloying elements in superalloys to improve the strength, corrosion resistance, and high-temperature stability of alloys. Especially in the aerospace field, bismuth alloy is extensively employed in manufacturing engines for aircraft, rocket engines, and other high-temperature equipment. In addition, bismuth alloy can also be used in the manufacture of high-temperature bearings, gears, and other key components. 

Catalyst preparation: 

Bismuth powder can be used as a catalyst in petroleum cracking, ammonia synthesis, hydrogen production, and other industrial production. As a catalyst carrier, bismuth powder can improve the activity and selectivity of the catalyst. In addition, Bismuth powder is also employed as an adjunct to the homogeneous catalyst to enhance the stability and efficiency of the catalyst.

Optical coating: 

Bismuth powder can be used as a high refractive index material in the field of optical coating for the preparation of optical components and optical systems. By coating a bismuth film on the surface of glass or other materials, the reflectivity and transmittance of light can be significantly increased, thus improving the performance of optical systems. 

Medical field: 

Bismuth powder has some special applications in the medical field. For example, bismuth powder can be used for medical implants, such as artificial joints, dental plants, etc. Because bismuth has good biocompatibility and corrosion resistance, it can be well combined with human tissues, reducing the risk of rejection and infection. In addition, bismuth can also be used to prepare drug carriers and drug slow-release materials for the treatment of major diseases such as tumors and cancers.

Company Profile：

Synthetic Chemical is a trusted global chemical material supplier & manufacturer with over 12 years of experience providing super high-quality chemicals and nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.

The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory with advanced testing equipment, and an after-sales customer service center.

If you are looking for high-quality zirconium plate steel metals, please feel free to contact us or click on the needed products to send an inquiry. 

Payment Term：

L/C, T/T, Western Union, Paypal, Credit Card etc.

Shipment Term：

By sea, by air, by express, as customers request.

Storage Conditions：

1) Store in a dry environment at room temperature.

2) Avoid damp and high temperature.

3) Use immediately after opening the inner packing bag.

FAQ：

Q1:

Production Advantages of Bismuth Powder: 

Production efficiency Advantages: The production process of bismuth powder is more efficient, and the product can be delivered faster. This is mainly due to upgrading production equipment and optimizing process flow so that all aspects of the production process can work together to improve production efficiency.

Product quality advantage: Bismuth powder production can produce uniform powder particle size so that bismuth powder can be better combined with the product to improve the quality of the product. Uniform powder size helps to improve product stability and reliability to meet customer needs.

Q2：

What are the applications of bismuth powder? 

Pigment: Bismuth powder makes high-grade pigments because of its metallic luster and high refractive index. In painting and coating, bismuth powder can be used to make high-grade colors such as gold and silver to improve the decorative effect of paint.

Metallurgical industry: Bismuth powder can be used in the preparation and smelting of alloys, such as the preparation of high-strength and high-toughness alloys, as well as improving the corrosion resistance and high-temperature properties of metals.

Construction industry: Bismuth powder can prepare high-performance building materials, such as mixing with other materials to prepare high-performance concrete, waterproof materials, etc.

Q3：

What is bismuth powder? 

Bismuth powder is bismuth metal powder processed by ball milling or a physicochemical process. The appearance of normal bismuth powder is brown, while the appearance of black bismuth powder is due to the oxidation of bismuth powder. Bismuth powder is a non-ferrous metal powder with unique physical and chemical properties, so it is widely used in many fields, such as pigments, electronics, aerospace, medical devices, metallurgy, construction, petroleum, environmental governance, and so on. In addition, bismuth powder is also used to manufacture bismuth alloys, additives, and so on.

Q4：

What are the physical properties of bismuth powder? 

Color and luster: Bismuth powder has a silvery white (or pink) to pale yellow luster.

Softness: Pure bismuth is a soft metal but may appear brittle when impure.

Stability: Bismuth is stable at room temperature and does not react with oxygen or water.

Electrical and thermal conductivity: Bismuth has poor electrical and thermal conductivity.

Density and melting point: Bismuth has a density of 9.8 g/mL (at 25°C) and a melting point of 271°C.

Expansibility: Liquid bismuth will expand when solidified.

Solubility: Bismuth is insoluble in water and non-oxidizing acids (such as hydrochloric acid). Even in concentrated sulfuric acid and hydrochloric acid, there is only a slight reaction when heated, but bismuth is soluble in aqua regia and concentrated nitric acid.

Q5：

What's the difference between bismuth and bismuth powder? 

Bismuth powder is a form of bismuth, which is the substance that grinds the bismuth metal into a powder. Bismuth powder has similar physical and chemical properties to bismuth metal but has some special uses due to its increased surface area. For example, bismuth powder can be used as an additive to improve the processing properties of the material. It can also prepare bismuth compounds, such as bismuth sulfide powder and bismuth trioxide powder.

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