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The origin and physical characteristics of boron powder

wallpapers Tech 2020-05-29
The content of boron in the earth's crust is 0.001%. Boron is a black or silver-gray solid. Crystal boron is black, second only to diamond in hardness, and has a relatively brittle texture. Boron is named Boron; its name comes from Arabic; the original meaning is "flux." Explain that the ancient Arabs already knew that borax could melt metal oxides and is used as a flux in welding.
His melting point is 2177 ~ 2301 ℃, boiling point is 2550 ~ 2658 ℃. ρ = 2.37g / cm3 (amorphous); 2.34 ~ 2.46g / cm3 (crystal). Melting point 2177 ~ 2301 ℃; boiling point 2550 ~ 2658 ℃.

Boron has the most considerable volumetric heat, and its weight heat 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—reduction of boron anhydride with magnesium to produce amorphous Boron.
They are used for robust ramjet engines and smokeless clean propellants.

Elemental Boron is a black or dark brown powder. When oxidized in the air, it will prevent the internal Boron from continuing to oxidize due to the formation of a boron trioxide film. It can react with fluorine at standard temperature and is not destroyed by hydrochloric acid and hydrofluoric acid aqueous solution. Boron is insoluble in water, powdered Boron is soluble in boiling nitric acid and sulfuric acid, and most molten metals such as copper, iron, manganese, aluminum, and calcium.

Trunnano is one of the world's largest manufacturers of amorphous boron powder. If you are interested in products related to boron powder, please contact Leo Manager, email: brad@ihpa.net.The origin and physical characteristics of boron powder

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