Uses of group 2 magnesium Flashcards
Magnesium hydroxide, Mg(OH)2, is partially soluble in
water
Magnesium hydroxide, Mg(OH)2, is partially soluble in water and is used in suspension (known as ‘milk of magnesia’) to
to neutralise excess acid in the stomach and treat constipation
Magnesium hydroxide, Mg(OH)2, is partially soluble in water and is used in suspension (known as ‘milk of magnesia’) to neutralise excess acid in the stomach and treat constipation
equation
Mg(OH)2 (s) + 2HCl (aq) → MgCl2 (aq) + 2H2O (l)
It is safe to use as the magnesium hydroxide as is..
only partially soluble making the solution only slightly alkaline (pH ≅ 10) due to the low OH- concentration
Magnesium is also used in the extraction of
titanium from its ore, TiO2
TiO2 is heated in a stream of chlorine, in the presence of coke, to produce TiCl4
equation
TiO2 (s) + 2C (s) + 2Cl2 (g) → TiCl4 (g) + 2CO (g)
The titanium is extracted from its chloride by reduction with
magnesium (sodium can also be used)
The titanium is extracted from its chloride by reduction with magnesium (sodium can also be used) equation
TiCl4 (g) + 2Mg (l) → Ti (s) + 2MgCl2 (l)