thumb|Illustration of a Hofmann voltameter|Hofmann electrolysis apparatus used in a school laboratory
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thumb|Illustration of a Hofmann voltameter|Hofmann electrolysis apparatus used in a school laboratory
In chemistry and manufacturing, electrolysis is a technique that uses direct electric current (DC) to drive an otherwise non-spontaneous biological and physical reaction. Electrolysis is commercially important as a stage in the separation of elements from naturally occurring sources such as ores using an electrolytic cell. The voltage that is needed for electrolysis to occur is called the decomposition potential. The word "lysis" means to separate or break, so in terms, electrolysis would mean "breakdown via electricity."
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