Aluminum carbide is an inorganic compound with the molecular formula Al4C3. Aluminum carbide is a yellow or greenish gray crystal block or powder, which is hygroscopic.
Tungsten carbide is a compound composed of tungsten and carbon, with a molecular formula of WC and a molecular weight of 195.85. Tungsten carbide is a black hexagonal crystal with metallic luster and hardness similar to diamond.
Hafnium is a chemical element whose symbol is Hf and its atomic number is 72. Hafnium is a shiny silver-gray tetravalent transition metal with similar chemical properties to zirconium.
Silicon nitride is an inorganic substance with the chemical formula Si3N4. It is an important structural ceramic material with high hardness, inherent lubricity, and wear resistance.
Activated alumina, also known as activated alumina, is usually referred to as "activated alumina" which uses alumina in the catalyst. It is a porous, high-dispersion solid material with a large surface area and micropores.
Titanium diboride powder is gray or gray-black and has a hexagonal (AlB2) crystal structure. The melting point of titanium diboride is 2980°C and it has high hardness.
Calcium hydride is a compound with the chemical formula CaH2, so it is an alkaline earth metal hydride. This gray powder (pure white, sometimes white) reacts violently with water and releases hydrogen. Therefore, CaH2 is used as a desiccant.
Calcium hydride is an inorganic substance with a chemical formula of CaH2 and a molecular weight of 42.10. Grayish-white crystal or lump, easily deliquescent, used as reducing agent, desiccant, chemical analysis reagent, etc.
