Iron ore 49-60%of which contains
Answers
Iron ores[1] are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in colour from dark grey, bright yellow, or deep purple to rusty red. The iron itself is usually found in the form of magnetite (Fe
3O
4, 72.4% Fe), hematite (Fe
2O
3, 69.9% Fe), goethite (FeO(OH), 62.9% Fe), limonite (FeO(OH)·n(H2O), 55% Fe) or siderite (FeCO3, 48.2% Fe).
Ores containing very high quantities of hematite or magnetite (greater than about 60% iron) are known as "natural ore" or "direct shipping ore", meaning they can be fed directly into iron-making blast furnaces. Iron ore is the raw material used to make pig iron, which is one of the main raw materials to make steel—98% of the mined iron ore is used to make steel.[2] Indeed, it has been argued that iron ore is "more integral to the global economy than any other commodity, except perhaps oil".[3]
The iron ore that belongs to 49-60% of Iron is called limonite
- Alloy is a mixture of two or more compounds. Metals are alloyed to increase their application since the Raw material most of the time cannot be used for a diverse application.
- This process of adding impurity is done in a meticulous way such that they are made usable.
- Iron on alloying can be made into different types such as Wrought Iron, Steel, Ledeburite and Cementite.
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what is an alloy ?explain giving example.
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alloy of iron is more useful when compared to pure metal why ?
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