Whose experiment first isolated a new element by electrolysis of molten salt?
Quick Answer
Humphry Davy’s. In 1807, he isolated potassium by electrolyzing molten potash, one of the first elements discovered this way.
The Full Story
Sir Humphry Davy used electrolysis to split compounds into their elements. In 1807, he isolated potassium from potash, and soon after he isolated sodium, calcium, magnesium, strontium, barium, and others. These discoveries showed that some substances previously thought to be compounds were actually elements that could be separated with electricity. Davy’s work transformed chemistry and helped launch electrochemistry. It also demonstrated how powerful new techniques could reveal elements hidden in minerals and salts.
Key Facts
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"How electricity unlocked hidden elements"
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