What is boron powder

boron powder Mr10.81. ρ2.37g/cm3 (amorphous); 2.34 ~ 2.46g/cm3 (crystal). Melting point 2177 ~ 2301℃. Boiling point 2550 ~ 2658℃. Boron has the greatest volume of heat, second only to beryllium by weight. Slightly soluble in nitric acid, insoluble in water. It can interact with oxygen, nitrogen, sulfur, halogen, and carbon at high temperatures to produce various compounds. It can also directly combine with many metals to produce metal borides. It can also react with organic compounds to produce organoborane. The semiconductor industry uses powder metallurgy additives and thermal spraying surface coating materials. Molecular weight: 10.81. Amorphous boron powder is a black or brown amorphous powder with a melting point is 2150℃, and a boiling point is 3680℃; chemical properties are relatively lively, stable in air and room temperature, heating to 300℃ when oxidized, to 700℃ is on fire, trace gasification of boron flame is green. Amorphous Boron is chemically active. Powder and air can form explosive mixtures. Preparation of amorphous Boron by reducing boron anhydride with magnesium. Used for solid ramjet and clean, smokeless propellant. Insoluble in water, hydrochloric acid, ethanol, and ether. Soluble in cold concentrated alkali solution and decomposes hydrogen gas. It can be oxidized to boric acid by concentrated nitric acid, sulfuric acid, and aqua regia. The chemical properties are relatively active. Stable in air and at normal temperature, heating to 300℃ is oxidized, and 700℃ is on fire. The flame is red when it burns and green when it is slightly vaporized, Boron. It can interact with oxygen, nitrogen, sulfur, halogen, and carbon at high temperatures. It can be directly combined with many metals to form metal borides. Reactions with organic compounds can produce -b-C – or -b-o-C – compounds. Low conductivity at room temperature, high conductivity at high temperature, and doping trace carbon can increase the conductivity. Explosive in contact with hydrogen iodide. Powder and air can form an explosive mixture; when it reaches a certain concentration, it will explode when it meets Mars. The hardness of Mohs is 9.3. It is heated to 900℃ in the air and burned at 850℃. It completely reacts with molten sodium carbonate and sodium hydroxide to produce a borate. It does not react with water and can react with most metals to form borides at high temperatures. If you are looking for high quality, high purity and cost-effective boron powder, or if you require the latest price of boron powder, please feel free to email contact mis-asia.