How to make a pure sample of magnesium?

Answer 1

A process for the production of pure magnesium chloride liquor from siliceous magnesium minerals comprises the steps of continuously leaching the siliceous magnesium mineral with a hydrochloric acid solution at a temperature higher than 50° C. but below the boiling point and in such a manner as to maintain the pH of the slurry below 1.5 to prevent the formation of silica gel, continuously reacting such slurry with a reactive magnesia in order to raise the pH to 4.0-7.0 to precipitate substantially all the impurities from solution while preventing silica gel formation, and performing a solid/liquid separation of the slurry on suitable filtration equipment to obtain pure magnesium chloride liquor.

Answer 2

To make a pure sample of magnesium, you can start with magnesium oxide (MgO) or magnesium chloride (MgCl2) and then perform a reduction reaction using a reducing agent such as carbon or hydrogen to obtain pure magnesium metal. The magnesium can then be further purified through processes like distillation or electrolysis. Always conduct these procedures in a controlled laboratory setting to ensure safety and accuracy.