What are the preparation and application scope of amorphous boron powder?

Boron is a chemical element, and its symbol is B.Around 200 BC, ancient Egypt, Rome, and Babylon used borax to make glass and weld gold. French chemist Guy Lussac used metallic potassium to reduce boric acid to obtain elemental boron. The content of boron in the earth's crust is 0.001%. Boron is a black or silver gray solid. Crystal boron is black, the hardness is second only to diamond, and the texture is brittle.

Boron also has an unusually high coordination number for boron atoms in its hydride due to its lack of electrons, making it the most complex structure of all element hydrides.

Boron preparation method

1. Firstly, decompose the boron magnesium ore with concentrated lye to obtain sodium metaborate, crystallize NaBO2 in strong alkali solution, make it dissolve in water to become a more concentrated solution, pass in CO2 to adjust the alkalinity, and concentrate the crystal to obtain tetraboric acid sodium. Dissolve sodium tetraborate in water and adjust the acidity with sulfuric acid to precipitate boric acid crystals with low solubility. Heating causes the boric acid to be dehydrated to produce boron trioxide. After drying, the B2O3 is reduced with magnesium or aluminum to obtain crude boron. The crude boron is treated with hydrochloric acid, sodium hydroxide and hydrogen fluoride to obtain brown amorphous boron with a purity of 95-98%.

2. The purest elemental boron is prepared by hydrogen reduction method: the mixed gas of hydrogen and boron tribromide is passed through a tantalum wire and heated to 1500K. The boron tribromide is reduced by hydrogen at a high temperature, and the resulting boron is formed on the tantalum wire. Flake or needle-like structure.

3. It is obtained by heating and reducing boron oxide from magnesium powder or aluminum powder.

Overview of amorphous boron powder

Elemental Boron This means that the ancient Arabs already knew that borax had the ability to melt metal oxides and was used as a flux in welding. Boron has the largest volumetric heat, and its weight is second only to beryllium. Slightly soluble in nitric acid, insoluble in water. Amorphous boron is chemically active. Powder and air can form explosive mixtures. Amorphous boron is prepared by reducing boric anhydride with magnesium. Used in solid ramjets and smokeless clean propellants.

Amorphous boron powder MF: B; molecular weight: 10.81; melting point: 2300℃±2℃; sublimation temperature: 2550℃; relative density: 2.34-2.37; solubility: insoluble in water, hydrochloric acid, ethanol and ether, easy to cold. The solution is decomposed into hydrogen by concentrated sulfuric acid and nitric acid and oxidized to boric acid.

The quality of amorphous boron powder is stable and reliable. This product can be stored for a long time, and products with different particle sizes can be customized according to user requirements.

Application of amorphous boron powder

Mainly used for amorphous boron powder in metallurgy, medicine, ceramics, nuclear industry, chemical industry and other industries.

Amorphous boron powder can be used in the alloy in the form of a compound or as an additive.

Amorphous boron powder is an important raw material for the manufacture of various borides.

Amorphous boron powder can also be used as a catalyst for organic chemical reactions.

Agglomeration affects the dispersion performance and use effect of boron powder. Therefore, the amorphous boron powder should be sealed in a vacuum package and stored in a cool and dry room without contact with air. In addition, the use of amorphous boron powder under stress should be avoided.

Price of Amorphous Boron Powder

The price of amorphous boron powder varies randomly with factors such as production costs, transportation costs, international conditions, exchange rates, and the relationship between supply and demand in the amorphous boron powder market. 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 amorphous boron powder material, please feel free to contact to get the latest price of amorphous boron powder.

Suppliers of Amorphous Boron Powder

As a global supplier of amorphous boron 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.