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Who was the first scientist to isolate Aluminium from Bauxite?

Who was the  first scientist to isolate Aluminium from Bauxite?
Aluminum is the most abundant metal element in the earth's crust, but it is always found in a compound rather than an easily-refined ore. Alum is one such compound. Scientists tried to tease the metal out of alum, but the process was costly until Charles Martin Hall patented an inexpensive method to produce aluminum in 1889.

Hans Christian Oersted, a Danish chemist, was the first to produce tiny amounts of aluminum in 1825, German chemist Friedrich W√∂hler developed a method that produced enough to study the metal's basic properties in 1845. French chemist Henri √Čtienne Sainte-Claire Deville finally developed a process that allowed commercial production of aluminum. However, the resulting metal still sold for $40 per kilogram in 1859. Pure aluminum was so rare at that time it was considered a precious metal.

On April 2, 1889, Charles Martin Hall patented an inexpensive method for the production of aluminum, which brought the metal into wide commercial use.