Liquid metal electrode
Encyclopedia
Liquid metal electrode is a replacement for mercury
electrode variants. A few examples are those based on galinstan
, NaK
. They can be used in the same way as the mercury electrode in electrocapillarity
, voltametry, impedance
measurement.
Mercury (element)
Mercury is a chemical element with the symbol Hg and atomic number 80. It is also known as quicksilver or hydrargyrum...
electrode variants. A few examples are those based on galinstan
Galinstan
Galinstan is a family of eutectic alloys mainly consisting of gallium, indium, and tin, which are liquids at room temperature, typically freezing at . Due to the low toxicity and low reactivity of its component metals, it finds use as a replacement for many applications that previously employed...
, NaK
NaK
NaK, or sodium-potassium alloy, an alloy, of potassium , and sodium , is usually liquid at room temperature. Various commercial grades are available. NaK is highly reactive with water and may catch fire when exposed to air, so must be handled with special precautions...
. They can be used in the same way as the mercury electrode in electrocapillarity
Electrocapillarity
Electrocapillarity or Electrocapillary phenomena are the phenomena related to changes in the surface energy of the Dropping mercury electrode as the electrode potential changes or the electrolytic solution composition and concentration change...
, voltametry, impedance
Impedance
Impedance may refer to:*Electrical impedance, the ratio of the voltage phasor to the electric current phasor, a measure of the opposition to time-varying electric current in an electric circuit**Characteristic impedance of a transmission line...
measurement.