Electrochemist

 Electrochemist

is the branch of physical chemistry that studies the relationship between electricity, as a measurable and quantitative phenomenon, and identifiable chemical change, with either electricity considered an outcome of a particular chemical change or vice versa.

 

(physical chemistry) Conversion of chemical to electric energy, as in electrochemical cells; or the reverse process, used to produce elemental aluminum, magnesium, and bromine from compounds of these elements.

 

A piece of bare iron left outside where it is exposed to moisture will rust quickly. The corrosion rate is enhanced by an electrochemical process in which a water droplet becomes a voltaic cell in contact with the metal, oxidizing the iron.

The H+ ions are obtained either from water or from acidic substances in water. The hydrogen atoms on the iron surface reduce dissolved oxygen. The ferrous ions are oxidized further by atmospheric oxygen to form rust. Therefore, this is the mechanism of rust with the chemical formula Fe2O3.

 

Chemical reactions can cause chemical changes while electrochemical reactions are used to generate electric charges and chemical changes occur.

 

How to Prevent Corrosion

 

    Use non-corrosive metals, such as stainless steel or aluminium.

    Make sure the metal surface stays clean and dry.

    Use drying agents.

    Use a coating or barrier product such as grease, oil, paint or carbon fibre coating.

    Lay a layer of backfill, for example limestone, with underground piping.

 

Removing corrosion is the only sure fix once it's found. Light surface corrosion can be removed with abrasion (the specifics of which depend on the metallurgy of the corroded part), then application of a corrosion inhibitor, such as zinc-chromate primer, another primer, and then paint.

 

You can use white vinegar for effective rust removal. The rust reacts with the vinegar and later dissolves. Simply soak the rusty metal object in white vinegar for a couple of hours and then just wipe to remove the rust.



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