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tozza and mukka
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What is the purpose of limestone in the blast furnace?
The limestone decomposes to quicklime and carbon dioxide, and the quicklime removes acidic impurities (eg SiO2). So basically limestone is to remove impurities
Why did the white limestone come by water?
Limestone can and does appear in shades of green, due to impurities.
Why it is unlikely that calcium chloride crystals are made from calcium metal?
It is unlikely that calcium chloride crystals are made from calcium metal because calcium is a rare and very expensive metal, also very susceptible of corrosion in normal air.It is much easier to start with limestone (CaCO3) and dissolve it with hydrochloric acid. Carbon dioxide is released and the excess of water should be evaporated after filtering of the undissolved particles of the limestone impurities.(CaCO3)s + (impurities of limestone)s + (HCl)l => (CaCl2)s + (CO2)g + (H2O)evap ++ [impurities of limestone]filter
What is limestone made out of?
Limestone is made of the shells of dead ocean organisms. Their shells are made of calcite.Hope i helped1 :)
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 purpose of limestone in the blast furnace?
The limestone decomposes to quicklime and carbon dioxide, and the quicklime removes acidic impurities (eg SiO2). So basically limestone is to remove impurities
Why did the white limestone come by water?
Limestone can and does appear in shades of green, due to 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.
How can iron be removed from ores?
Usually be melting the ores and adding limestone to the mix to gather the impurities which rise to the surface of the container. The impurities are then skimmed off.
Why it is unlikely that calcium chloride crystals are made from calcium metal?
It is unlikely that calcium chloride crystals are made from calcium metal because calcium is a rare and very expensive metal, also very susceptible of corrosion in normal air.It is much easier to start with limestone (CaCO3) and dissolve it with hydrochloric acid. Carbon dioxide is released and the excess of water should be evaporated after filtering of the undissolved particles of the limestone impurities.(CaCO3)s + (impurities of limestone)s + (HCl)l => (CaCl2)s + (CO2)g + (H2O)evap ++ [impurities of limestone]filter
What is limestone made out of?
Limestone is made of the shells of dead ocean organisms. Their shells are made of calcite.Hope i helped1 :)
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 a Detailed definition of marble?
Marble is metamorphosed limestone or dolomite. Primary composition is calcium carbonate. Veining is from non-calcitic impurities.
Why is limestone used for steel?
Limestone powder can be used for architecture, glass maing and can be used to generate power and heat. Also it can be used for cement and mortar, soil conditioner to neutralize acidic soil conditions, toothpaste, paper, plastics, paint and it is added to brad and cereals as a source of calcium.
How does limestone purify iron?
It removes the sandy impurities in the iron formed as 'slag' [calcium silicate] CaCO3---> CaO + CO2 CaO + SiO2 ----> CaSiO3.
Limestone is the most common source of this element?
The principal component of limestone is the mineral calcite, but limestone frequently also contains the minerals dolomite (CaMg(CO3)2) and aragonite (CaCO3). Pure calcite, dolomite, and aragonite are clear or white. However, with impurities, they can take on a variety of colors. Consequently, limestone is commonly light colored; usually it is tan or gray. However, limestone has been found in almost every color. The color of limestone is due to impurities such as sand, clay, iron oxides and hydroxides, and organic materials. All limestone forms from the precipitation of calcium carbonate from water. Calcium carbonate leaves solutions in many ways and each way produces a different kind of limestone. All the different ways can be classified into two major groups: either with or without the aid of a living organism.
How does limestone remove impurities during the extraction of iron?
Limestoneis calciumcarbonate(CaCO3) and it isaddedto theblast furnacetoremovetheimpuritiesin theironore.Calciumcarbonateisdecomposedbyheatin thefurnaceto givecalciumoxide(quicklime) andcarbon dioxide.This is calledthermal decomposition(see examples ofother carbonates).
