Molybdenum Disilicide

Molybdenum disilicide is gray square crystal powder. In MoSi2, molybdenum combine silicon by metallic bond and silicon combine silicon by covalent bond. It is stable at room temperature and pressure. Its specific resistance is 21.6*10-6. MoSi2 is insoluble in water and common mineral acids including aqua regia, but soluble in mixture acid of nitric acid and hydrofluoric acid. It owns excellent high temperature oxidation resistance, which can use as heating elements at high tempearature oxidizing atmosphere. Molybdenum powder is the raw material.

Molybdenum  Disilicide

CAS No.:12136-78-6EC No.:235-231-8Molecular Formula:MoSi2Molecular Weight:154.13
Density:6.31Melting Point:2030℃  


Molybdenum silicide applies to high temperature oxidation resistance coating material, electric heating elements, integrated electrode film, structural material, enhance of composite, refractory material, jointing material of structural ceramics.

Molybdenum disilicide powder get applications in high temperature heat exchanger of atomic reactor device, gas burner, high temperature thermocouple and its protective tube, crucible for smelting in energy chemical industry.  It is for smelting sodium, lithium, lead, bismuth , tin and other metals.

MoSi2 and other refractory metal silicides as TitSi3, WSi2, TaSi2 are important candidate materials for grid electrode of large scale integrated circuit and interconnection film in microelectronics industry.