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Electrical Apparatus Davy's potash experiment, c 1808

Electrical Apparatus Davy's potash experiment, c 1808
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Largest available format 3504 × 2665 px 1 MB
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Large 3504 × 2665 px 297 × 226 mm 1.1 MB
Medium 1024 × 779 px 87 × 66 mm 886 KB

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IMAGE number
UIS5083018
Image title
Electrical Apparatus Davy's potash experiment, c 1808
Auto-translated text View Original Source
Location
Science Museum, London, UK
Medium
object
Image description

Electrical Apparatus Davy's potash experiment, c 1808. Recreation of the experiment conducted by Sir Humphry Davy (1778-1829) to make pure potassium, a soft, silvery-white metal, for the first time. Pure potassium does not occur in nature because it combines too readily with other substances to form compounds such as potash (potassium carbonate) - found in the ashes of burned plants. Davy used a battery as the source of electrical current, which when carried along wires melts the potash and pure potassium collects around the negative contact. Davy is also famed for inventing the miners' safety-lamp. ©SSPL/Science Museum

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SSPL/UIG / Bridgeman Images
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