Assertion: liquid's sodium | /r/HasProperty | formed as amalgam
Facets:
value: at a cathode
type: LOCATION
Source sentences:
text: By far the largest use of mercury in the late 20th century was in the mercury cell process (also called the Castner-Kellner process) where metallic sodium is formed as an amalgam at a cathode made from mercury; this sodium is then reacted with water to produce sodium hydroxide.