Electrochemistry
Electrochemistry is a branch of chemistry concerned with electric currents in relation to chemical reactions. Certain spontaneous chemical reactions can generate useful electric currents, whilst other chemical reactions can be forced to proceed by an electric current. Electrochemistry is the basic science behind standard batteries which are also called electrochemical cells.
Electrochemistry is also the basis of many everyday household chemical products. Bleach is made from chlorine and caustic soda, which are the products of brine electrolysis and can be made directly with an electrochemical cell. Chlorine is used to treat pools as well as drinking water, and is also an ingredient in PVC. Many cleaning agents, detergents, soaps and even paper are made or treated with the caustic soda, which is a product of brine-electrolysis.
Electrochemistry is also used to make aluminium, as it is the only economically practical way to produce the metal from its ore. Other common metals such as copper, zinc, silver and lead, are refined or purified by electrochemical processes. Many of these metals may need protection from unwanted corrosion, and this can be achieved by applying a corrosion resistant metal coating or in the case of anodising an integrated substrate. In most cases this is carried out by a process called electroplating, such as with chrome, gold or silver plating, Electroforming is where whole items are created by an electrodeposition process.
Rust in metals is the result an anodic reaction which itself is the mechanism of electrochemical corrosion, where the metal forming the anode dissolves in the electrolyte in the form of positively charged ions. There can be around 6 different types of electrochemical reactions that occur when metals become corroded, so electrochemistry is related to both the problem and the solution.
[edit] Related articles on Designing Buildings
- Brass.
- Brittle fracture.
- Corrosion coupons.
- Corrosion inhibitor.
- Corrosion resistance.
- Corrosion resistant alloy CRA.
- Crevice corrosion.
- Deterioration.
- Failure of cast iron beams.
- Galvanised steel.
- Galvanic corrosion.
- Graphitisation.
- Guidance for construction quality management professionals: Structural Steelwork.
- Hydrogen embrittlement.
- Iron.
- Marine corrosion.
- Microbiologically influenced corrosion.
- Pitting.
- Rust.
- Steel.
- Stainless steel.
- Types of metal.
- Types of steel.
- Under-deposit corrosion.
Featured articles and news
We're expanding our collaborative mission by launching DB Intelligence, an exclusive market research advisory panel. Built environment professionals can now get paid to share their expertise on industry trends, products and services.
Panel members receive direct financial incentives for participating in research projects like short surveys, 1-2-1 interviews and focus groups. Register today to shape the future of the construction sector.
Planning condition discharge in England and Wales
A brief exoplanation from a building compliance expert, with further links.
Overheating guidance and tools for building designers
Guidance for dealing with element of building fabric control that have increasing importance.
Shading for housing, a design guide
From the Good Homes Alliance and British Blind and Shutter Association.
UK Standard Skills Classification (SSC)
A shared framework for describing skills needs.
Social media ban consultation comes to close
CIOB urges UK Government to consider social media’s role in careers guidance in ban debate.
The latest of eight Skills England apprenticeship units
The addition of battery manufacturing welcomed by ECA with a warning about the risks of fast-tracked apprenticeship units.
Building Control Independent Panel final report
A precis of a key report led by Dame Hackitt with full recommendations and link to the government response.
Building Safety recap April, 2026
A short and longer run-through of the month, with links to further information and sources.
CIAT May 2026 briefing.
From medieval scribes to modern word art.
ECA welcomes crackdown on late payment and push for clean energy, whilst CIOB seek fixed cladding removal timeframes.
Cyber Security in the Built Environment
Protecting projects, data, and digital assets: A CIOB Academy TIS.
Managing competence in the built environment
ITFG publishes new industry guide on how to meet the ICC principles.
The UK's campaign to reduce noise pollution: Mythbusting, articles and topic guides.