Boron carbide

CAS: 12069-32-8
Molecular Formula: B4C
Molecular Weight: 55.255
Product description:Hard and black glossy crystal. The hardness is lower than industrial diamond, but higher than silicon carbide. Compared with most of the pottery, the fragility is low. With large thermal neutron capture cross section. Strong resistance to chemical processes. Is not heated hydrogen fluoride and nitric acid erosion. Dissolved in molten alkali, insoluble in water and acids. Relative density (d204) 2.508 ~ 2.512. Melting point is 2350 ℃. The boiling point of 3500 ℃.Because the boron carbide in a long time ago, it has been as a kind of coarse sand grinding material. Due to its high melting point, is not easy to cast artifact, but by high temperature melting powder, it can be processed into simple shapes. Used in grinding of hard materials, such as cemented carbide, etc., milling, drilling and polishing.