News

Synthetic method of chromium diboride CrB2 powder Chromium and appropriate amount of boron powder are heated in vacuum or inert atmosphere at 1600℃ or sintered at 1150℃ for 48～72h, and chromium boride…

Praseodymium oxide traits Black powder, density 6.88g/cm3, melting point 2042℃, boiling point 3760℃. Insoluble in water, soluble in acid to generate trivalent salts. Good conductivity. Praseodymium oxide (oxide) Praseodymium oxide, also known…

Silicon monoxide is an inorganic compound whose chemical formula is SiO. It is a black-brown to yellowish amorphous powder under normal temperature and pressure. It has a melting point of 1702°C, a…

Manganese dioxide is an inorganic compound with a chemical formula of MnO2. It is a black amorphous powder or black orthorhombic crystal. It is hardly soluble in water, weak acid, weak alkali,…

Overview of calcium hexaboride CaB6 powder Calcium boride is a boron-containing additive used as anti-oxidation, anti-erosion and hot strength of dolomite and magnesium dolomite refractories. It is also used as a deoxidizing…

Aluminum boride preparation method Using amorphous boron powder and aluminum powder as raw materials, powder metallurgy is used to prepare AlB12 powder. X-ray diffractometer and scanning electron microscope were used to determine…

Samarium oxide is an inorganic metal compound with a molecular formula of Sm2O3, which can be used to prepare other organic materials and catalysts. It is a white, slightly yellowish powder, insoluble…

Tungsten oxide preparation method 1. Ammonium tungstate method tungsten concentrate is alkaline hydrolyzed by sodium hydroxide, neutralized with hydrochloric acid, and then reacted with ammonium chloride to generate ammonium tungstate, and then…

Holmium oxide synthesis method 1. Burning method: The holmium nitrate solution is reacted with alkali to form holmium hydroxide, and then separated and burned to obtain holmium oxide. 2. Using holmium-containing rare…

Introduction to Chemically Foamed Cement Chemical foaming Cement uses a chemical method (chemical reaction) to generate gas to foam the cement material to form a porous material. This foaming form and process…

Aluminum nitride, covalent bond compound, chemical formula is AIN, is atomic crystal, belongs to diamond-like nitride, hexagonal crystal system, wurtzite crystal structure, non-toxic, white or off-white Aluminum nitride (AlN) has the characteristics…

Physical and chemical properties of molybdenum disulfide The main component of molybdenite. Black solid powder with metallic luster. Chemical formula MoS2, melting point 2375℃, density 4.80g/cm3 (14℃), Mohs hardness 1.0～1.5. [1] It…