'Sacrificial protection' presentation slideshows

Extraction of metals

Extraction of metals. Only some unreactive metals such as silver, gold and platinum can occur freely in nature. Most metals react with other elements to form ores. Major steps in extraction of metal. Ore concentration Ore is purified and concentrated, unwanted rocks removed

4.96k views • 36 slides

Corrosion

459 views • 23 slides

Corrosion, Rusting and How to Fight it.

Corrosion, Rusting and How to Fight it. Cairney McAteer. What is Corrosion. Corrosion is the changing of the surface of the metal from an element into a compound. Corrosion is an example of oxidation because it involves a loss of electrons. Fe ----------> Fe 2+ + 2e -. Rusting.

722 views • 10 slides