If a hydrate of the metal hydroxide is employed as the starting material, it is generally preferred to remove the water of hydration initially by adding the inert solvent and heating the resulting mixture to the boiling point of the solvent for the period of time required to distill off {HEAD ~ the water} of {TAIL ~ hydration}, typically from 0.5 to 3.0 hours 
If a hydrate of the metal hydroxide is employed as the starting material , it is generally preferred to remove the water of hydration initially by adding the inert solvent and heating the resulting mixture to the boiling point of the solvent for the period of time required to distill off { HEAD ~ the water } of { TAIL ~ hydration } , typically from 0.5 to 3.0 hours
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