The electric current chemical effects: there decompositions as it passes through certain liquids called electrolytes, which can be as acids, bases or salts or molten or in solution, usually in water.
The operation called electrolyte is in a vessel, in which the conductive blade is called the current reaches the positive electrode (input terminal) or anode, the other blade is the negative electrode (output terminal) or cathode.
In a solution of copper sulphate CuSO4 with a copper anode and a cathode any. (See example) In this example, forms a copper deposit on the cathode, but nothing has emerged on the anode. The color of the solution does not change: it impoverishes not in copper sulphate, notwithstanding the filing of the cathode. The anode gradually disappears. is that the ion SO4 after losing his office reacts to give copper sulphate which dissolves, and can be summarized as follows:
The applications of electrolysis are many, it is used for the industrial preparation of a large number of bodies (hydrogen, oxygen, chlorine, sodium, potassium chlorate, aluminum, copper, etc. ...
It also serves to deposit a layer of metal (copper, nickel, chromium, silver, gold) on an object for supporting any or mold. This is electroplating. We can preserve the iron from rust: simply the nickel. It can cover a body of a precious metal silver or gold plating.
The same phenomenon allows use in the refining of impure metals, copper for example.
See also: calculator of the duration of an operation of electrolysis
The operation called electrolyte is in a vessel, in which the conductive blade is called the current reaches the positive electrode (input terminal) or anode, the other blade is the negative electrode (output terminal) or cathode.
In a solution of copper sulphate CuSO4 with a copper anode and a cathode any. (See example) In this example, forms a copper deposit on the cathode, but nothing has emerged on the anode. The color of the solution does not change: it impoverishes not in copper sulphate, notwithstanding the filing of the cathode. The anode gradually disappears. is that the ion SO4 after losing his office reacts to give copper sulphate which dissolves, and can be summarized as follows:
The applications of electrolysis are many, it is used for the industrial preparation of a large number of bodies (hydrogen, oxygen, chlorine, sodium, potassium chlorate, aluminum, copper, etc. ...
It also serves to deposit a layer of metal (copper, nickel, chromium, silver, gold) on an object for supporting any or mold. This is electroplating. We can preserve the iron from rust: simply the nickel. It can cover a body of a precious metal silver or gold plating.
The same phenomenon allows use in the refining of impure metals, copper for example.
See also: calculator of the duration of an operation of electrolysis
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