What is the role of Boron
Are you knowledgeable about Boron?
Boron has the largest volumetric warm, and also its gravimetric heat is 2nd only to beryllium. A little soluble in nitric acid, insoluble in water. Amorphous boron is chemically energetic. Powder as well as air can develop explosive combinations. Preparation of amorphous boron by decreasing boron anhydride with magnesium. For strong ramjets and also smokeless clean propellants.
Essential boron is black or dark brown powder. When oxidized in air, the formation of boron trioxide movie impedes the inner boron from proceeding to oxidize. It can react with fluorine at room temperature and also is not rusted by aqueous hydrochloric acid and hydrofluoric acid. Boron is insoluble in water, powdered boron is soluble in steaming nitric acid as well as sulfuric acid, and also most liquified steels such as copper, iron, manganese, light weight aluminum and calcium.
The Physical and also chemical residential properties of Boron
Gray-black shiny crystals. The partnership between temperature level as well as crystal kind is: > 1300°& deg; C is high-temperature rhombohedral (β& beta;-kind°); 1000-1300 & deg; C is tetragonal crystal; 800-1000 & deg; C is low-temperature rhombohedral (α& alpha;-type). The relative density is 2.34 ~ 2.37. The melting factor is 2300°& deg; C, and also the sublimation temperature level is 2550°& deg; C. Insoluble in water, hydrochloric acid, ethanol, and also ether. Soluble in cold concentrated antacids service and also decayed hydrogen. It can be oxidized right into boric acid by focused nitric acid, focused sulfuric acid, and also aqua regia. The chemical residential properties are relatively dynamic. It is stable in the air, and at room temperature, it will be oxidized when heated up to 300°& deg; C, and it will ignite at 700°& deg; C. When burning, the fire is red, and the flame of trace gasified boron is green. It can communicate with oxygen, nitrogen, sulfur, halogen and carbon at high temperature level. It can be straight combined with numerous metals to develop steel borides. Reaction with natural compounds can create -B-C- or -B-O-C- compounds.
The nature of Boron brown powder. The family member thickness is 1.73, the melting factor is 2190°& deg; C, as well as the boiling factor is 3660°& deg; C. Unaffected by water, bromine and chlorine at certain temperatures. Unburned boron can be soaked up in hot nitric acid, sulfuric acid as well as molten metals, such as iron, magnesium and aluminum, etc, as well as is insoluble in water. The electric conductivity is low at space temperature, as well as the electrical conductivity is high at heat, and also the electrical conductivity can be raised after doping with trace carbon. Contact with hydrogen iodide can blow up. Powder and air can form an explosive mixture, as well as when it gets to a certain focus, it will certainly take off when it encounters Mars.
Applications of Boron
Boron powder can be made use of in superconducting products, amorphous alloy materials, aerospace alloy materials, digital products, chemical anti-corrosion materials, ceramics, enamel lusters, and also nuclear leakage avoidance products. It is utilized as a dopant for semiconductor product silicon, a heat and also high power semiconductor device product, and also an infrared tool product. Adding boron powder to the metal can generate aircraft brake pads, welding products, boride alloys, as well as amorphous products. The unique steel made of steel included with boron powder can efficiently enhance the wear resistance of the mechanical industry transmission grinding system. Including a specific amount of boron powder in glass industry processing can raise the stamina of glass by greater than 10 times. High-purity boron powder can also be utilized to procedure as well as manufacture drilling devices, replacing various commercial carbide boring tools. Boron powder is commonly utilized in armed forces, equipment, aerospace, chemical, pharmaceutical and also various other sectors.
Rate of Boron
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