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The most important are carbon and silicon.
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When oxygen is blown into pure iron to remove impurities Wont it react with Iron itself to give iron oxide?
Oxygen is not blown into pure iron, it is blown into molten iron ore (many impurities) and coke has been added to the mix as well. the coke reacts with the impurities and the oxygen to purify the iron ore.
How does calcium carbonate purify iron?
Calcium carbonate (limestone) is used in blast furnaces to capture impurities and form a slag that floats above the molten iron to keep the impurities from mixing back into the iron.
What is the method for purifying iron?
After iron ore is mined it is crushed into a powder then injected into a blast furnace. Under the extreme temperatures the ore melts and since iron is more dense than the impurities, it sinks to the bottom. This leaves a film of "slag" (impurities) on top. The slag is then skimmed off so only the metal remains.
How fast a nail will rust by water?
This really depends on the concentration of impurities in water. More the impurities, faster it will rust the iron nail. To reduce rusting of any iron the best way is to paint the nail.
Why is cast iron more brittle than mild iron?
Brittle because it contains impurities such as carbon and sulfur. The structure of the molecules in iron, particularly when cast, is such that it is almost crystalline in nature and breaks easily. The addition of carbon and other metals into the mix gives you more malleable compounds that are less brittle and can convert it to what we refer to as steel.
What is cast iron made of?
Cast iron is mostly made of iron or an iron alloy. It typically also has some silicon and manganese, along with trace amounts of impurities like sulfur.
What is cast made of?
Cast iron is mostly made of iron or an iron alloy. It typically also has some silicon and manganese, along with trace amounts of impurities like sulfur.
What is the Bessemer Machine?
It isn't so much a machine. It is a method. It is used to make iron into steel. Iron has impurities and Bessemer found out that if you pump air into the iron it removes the impurities and it becomes steel.
When oxygen is blown into pure iron to remove impurities Wont it react with Iron itself to give iron oxide?
Oxygen is not blown into pure iron, it is blown into molten iron ore (many impurities) and coke has been added to the mix as well. the coke reacts with the impurities and the oxygen to purify the iron ore.
What types of iron is there?
pig iron, wrought iron and cast iron. These are broad classifications used commercially, they can be subclassified. Chemically we say that its pure or impure, contains sulphur/phosphorous/impurities(slag, etc.)/carbon in so and so % range
How did the Bessemer process allow better use of iron ore?
A faster and more affordable way of making steel, using air blown in through the iron that caused impurities to burn off.
How does calcium carbonate purify iron?
Calcium carbonate (limestone) is used in blast furnaces to capture impurities and form a slag that floats above the molten iron to keep the impurities from mixing back into the iron.
Is iron ore homogeneous?
no because it contains impurities
Why is limestone added to the blast furnace during the extraction of iron?
Iron ore contains the impurities sand and clay, which are silicon oxides. Limestone is added to remove these impurities.
Why is iron a good metal for to use for bridges?
Iron as a metal in the pure form is somewhat fragile. But iron mixed with some impurities like Carbon is very strong which is used in the construction of bridges. This iron mixed with impurities is called as Cast Iron.
What is Bessemer steel?
A Bessemer steel is a variety of steel which is made directly from cast iron by burning out a portion of the carbon and other impurities that the latter contains.
What are the effects of metal impurities in iron?
Metal impurities can have many different effects on iron. Some of these effects may include, but are not limited to differences in strength, chemical inertness, and flexibility.
