Magnesium

Magnesium is a very reactive,light metal.It is not found in the free state.It occurs as magnesium chloride in sea water.Melting point is 650C and boiling point is 1100C.Magnesium is easily tarnished on exposure to air,hence shiny nature is not easily noticed.

Chemical Properties

• Magnesium burns with a bright flame when heated strongly to produce magnesium oxide.

                            2Mg(s) + O₂(g) -------->2MgO(s)

        

• Magnesium does not react with cold water,but heated magnesium will react withstea to produce magnesium oxide and hydrogen gas.

               

                           Mg(s) + H₂O(g) ----------> MgO(s) +H₂(g)

• Mgnesium reacts rapidly with dilute acids producing the magnesium salt and hydrogen.

 

                           Mg(s)  + 2HCl(aq) -------à MgCl ₂ (aq) + H₂ (g)

    Uses Of Magnesium 

  

•  Making fertilizers 
• Making pharmaceutical drugs such as Milk of Magnesia
• Making firewotks in the firework industry.
• As an anti-corrosive material
• Making alloys