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What is Boron?
Boron is either a silvery-gray or black solid. The earth’s crust contains 0.001% boron. Crystal boron has a black color, is harder than diamond and is brittle. Boron was named Boron. Its name is derived Arabic, and the original meaning of “flux”. This shows that ancient Arabs were aware that borax was able to melt metals oxides and used as a welding flux.
Boron – Preparation
The sodium metaborate first obtained is by decomposing the magnesium borate solution with a concentrated alkali, then crystallizing NaBO2 to a stronger alkali, making the solution dissolve in water, increasing the concentration, and finally adjusting the acidity by adding CO2. Adjust the acidity of the sodium tetraborate solution with sulfuric to precipitate crystals of boric acids with low solubility. After heating, boric acid dehydrates to produce borontrioxide. Then, after drying, crude-boron is obtained through reducing B2O3 by magnesium or aluminium. The crude boron undergoes three different treatments: hydrochloric, sodium hydroxide and hydrogen fluoride. This results in brown amorphous, 95-98% pure boron.
By hydrogen reduction, you can make the purest monomeric form of boron. You pass a mixture of hydrogen with borontribromide through the wire. After heating the wire to 1500K by electric heat, borontribromide will be reduced by high-temperature hydrogen.
You can also obtain boron by heating magnesium or aluminum powder and reducing boron dioxide.
Use of boron for industrial purposes
Boron, a chemical raw-material mineral, has a variety of uses. It is used to produce borax, boric acids, and boron as well as the elemental boron. It is widely used in metallurgy as well as building materials, machinery and electrical appliances. Chemicals, light-weight wool, the nuclear sector, medicine, agriculture and other industries. Raw materials are important. Boron is used in more than 300 products. Glass, ceramics, detergents, and fertilizers for agriculture are some of the major uses.
Elemental Boron is used for reducing, oxidizing, brominating, organic synthesis, as an insulator, especially of high voltage electricity, plasma, and high-frequency, and also a transmission window in radar.
The boron element is found in trace amounts of alloys, and when combined with aluminum or plastic, can be used as an effective shielding material for neutrons. Boron-containing additives improve sintering, which is important in the metal industry. The quality of ore can reduce the melting point and reduce the expansion. It also improves strength and hardness. Boron and its derivatives are also used in the metallurgical and steel industries as raw materials for boron-iron boron steel. The addition of titanium boride or lithium boride to building materials and heat-resistant alloys can produce these compounds. Borates, borides, and other borates are essential components in enamel, ceramics, glass, and ceramics. They can be used to improve the surface finish and gloss of a product.
Zinc borate may be used as a fireproof fiber insulator. It’s a good fire retardant. It can also be used for bleaching or mordant dying. In fabric bleaching, sodium metaborate can be used. Additionally, boron compounds and paint desiccants can be used to make soldering and wastewater treatment agents that contain mercury in the paper industry.
Boron can be found as a trace in quartz. How to reduce boron to the minimum is the key in the purification process for high-purity, quartz sand. The presence of Boron reduces quartz melting point and decreases the number uses of the quartz crucible. This increases production costs of monocrystalline Silicon.
China has abundant boron-ore resources but boron-ore products cannot meet domestic construction needs. Domestic borax production was around 400,000 tons in 2007, imported boron-ore products were 648.700 tons. This is a high dependence on imports.
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