electro-, electr-, electri-

1. The movement of charged particles through a medium.
2. The transport of electric charges, under electric potential differences, by charged particles (called ions) of atomic or larger sizes.

The passage of a direct current between metallic electrodes immersed in an ionized solution.

In metals, the electric charges are carried by the electrons of inappreciable mass.

In solutions, the electric charges are carried by electrolytic ions, each having a mass several thousand times as great as the electron.

The positive ions move to the cathode (negative electrode) and the negative ions to the anode (positive electrode).

1. The ability of charged particles to move through a medium.
2. The conductivity of a medium in which the transport of electric charges, under electric potential differences, is by particles of atomic or larger size.

1. Refined copper produced by electrodeposition or an electrolytic process in which a metal is deposited at the cathode from a solution of its ions which includes electroplating and electroforming. Also known as electrolytic deposition. 2. Metallic copper produced by electrochemical deposition from a copper ion-containing electrolyte.

1. The ionization of a compound in a solution.
2. The ionization of a solute in a solution
3. The breaking up of a neutral ionic compound into two or more oppositely charged ions, usually by the effect of dissolution or separation into component parts.
3. The separation of the molecule of an electrolyte into ions or its constituent atoms.

A gas formed by the electrolysis (chemical changes produced in an electrolyte by an electric current) of water, consisting of two parts of hydrogen and one part of water.

1. A combined grinding and machining operation in which the abrasive cathodic grinding wheel is in contact with the anodic surface or an electrode from which electrons leave an electrolyte.

Used with a metal-bonded and diamond-impregnated grinding wheel.

2. A combined grinding and machining operation in which the abrasive, cathodic grinding wheel is in contact with the anodic work piece beneath the surface of an electrolyte.

1. An interrupter component that is tilted to change the current through it.
2. A current interrupter consisting of a cell with two electrodes that is immersed in an electrolyte such that the passage of current through the cell causes bubbles to form in the electrolyte, the bubbles breaking the circuit.
3. An interrupter that consists of two electrodes in an electrolytic solution.

Bubbles formed in the solution continually interrupt the passage of currents between the electrodes.

A pure iron which has excellent magnetic properties, produced by an electrolytic process.

1. A procedure used to remove mercaptans from refinery streams by using an electrolytic solution.
2. A process in which an aqueous caustic solution is used to extract mercaptans from refinery streams.

Mercaptans are groups of organosulfur compounds that are derivatives of hydrogen sulfide in the same way that alcohols are derivatives of water; have a characteristically disagreeable odor, and are found with other sulfur compounds in crude petroleum; an example is "methyl mercaptan".

Mercaptans are found in crude petroleum, and methyl mercaptan is produced as a decayed product of animal and vegetable matter.

They also are produced by certain plants and animals; for example, allyl mercaptan is released when onions are cut, butanethiol (butyl mercaptan) derivatives are present in skunk secretion, and mercaptans are among the sulfur compounds causing the disagreeable odor of flatus.

T-butyl mercaptan blends are often added to the odorless natural gas used for cooking and serve to warn of gas leaks.

Mercaptans are included in a wide variety of chemical reactions and their principal uses are in jet fuels, pharmaceuticals, and livestock-feed additives.

1. A laboratory-model simulation of steady-state fluid flow through porous media found in a reservoir.
2. A laboratory simulation of steady-state fluid flow through porous reservoir media.

It depends on the mobility of ions in absorbent media (gelatin or blotter), or through a liquid (potentiometric technique which is a device used to make a precise determination of the electromotive force, or maximum output voltage, of a cell or generator by comparing it with a known voltage).

1. The process of removing surface oxides from a metallic product by means of electrochemical procedures.
2. Removal of metal by electrolysis using the metal as an electrode in a suitable electrolyte.
3. A process for the removal of oxide scales from metal surfaces in preparation for electroplating.

The metal is made the cathode in an electrolytic cell containing strongly acidic (sometimes hot) solution that dissolves the oxide scales.

1. The smallest difference in electronic energy between an electrolytic solution and an electrode that is immersed in a solution that will lead to the acceptance or donation of electrons.
2. The difference in potential between an electrode and the immediately adjacent electrolyte, expressed in terms of some standard electrode difference.

1. The metallic powder produced by electrodeposition, either directly or by comminuting (reduce to small pieces or particles by pounding or abrading) a bulk electrodeposit (a deposit of a dissolved or suspended substance on an electrode by electrolysis).
2. Metal powder produced directly or indirectly by electrodeposition (to deposit a substance, especially a metal, on an electrode by using electrolysis).

1. An electrochemical process involving the principles of electrolysis, especially as relating to the separation and deposition of metals.
2. An process that uses electricity to cause the decomposition of a chemical compound.