Chapter 16 - Extraction and corrosion of metals Flashcards
1
Q
Rust is
A
hydrated iron oxide
(reaction between moisture, oxygen and iron)
2
Q
Common barrier methods
(prevent corrosion)
A
Oiling, Painting, galvanising, electrolysing, plastic coatings
3
Q
sacrificial protection in barrier methods
A
layered with a more reactive substance which reacts before the other one can
4
Q
CaCl
A
drying agent
5
Q
hematite
A
major ore of iron (Fe2O3)
6
Q
slag
A
molten mix of impuritues formed in blast furnace
7
Q
A
