Evening Republican, Volume 21, Number 189, Rensselaer, Jasper County, 20 August 1918 — Oxide of Iron. [ARTICLE]

Oxide of Iron.

Oxide of iron, explained in simplest terms, is a combination of Iron.and the gas, oxygen. The rust that gathers on a piece of iron exposed for a length of time to the air is a form of oxide of iron. Iron is seldom found in a pure state. The iron ores taken from mines are ferrous compounds, that is, iron combined with other elements —with oxygen, sulphur, phosphorus, etc. In the manufacture of iron from the ore. these substances have to be got rid of. If iron ore contains a high percentage of iron, it is valuable.