Magnesium nitride, formation

In general, the nitrides of most of the metals and many of the nonmetals may be prepared by heating the elements together. Owing to the inactivity of nitrogen at ordinary temperatures, it is usually necessary to heat to a very high temperature. Consequently, the formation of nitrides is often observed in electric furnace work. Magnesium nitride is one of the nitrides easiest to prepare. 

Magnesium forms both an oxide and a nitride when burned in air. Discuss the formation of magnesium oxide and magnesium nitride when magnesium atoms react with oxygen and nitrogen atoms. 

Formation of Metbylenimine After (n,p) C Transmutation in Magnesium Nitride... 

SFfi/ inert gas mixtures are used in the production of magnesium and magnesium alloys and the cleaning of aluminium melts. It functions as a protective gas to prevent ignition, oxidation and nitride formation as well as for removing oxides and solid inclusions. 

The first mechanism proposes that metal volatilisation causes rupture of molten droplets (as with magnesium), whereas the second considers the production of a volatile oxide such as CO inside materials such as steels that contain an excess of 0.1% carbon. The third mechanism involves the formation of oxy-nitride compounds which decompose at high temperatures, liberating nitrogen (as with titanium). 

At room temperature magnesium is not attacked hy air. However, when heated it hums with a dazzling white light, forming the oxide, MgO and nitride, MgsN2. The formation of oxide is an exothermic reaction. The heat of reaction causes a portion of the metal to combine with the nitrogen of air ... 

---