Calcium Carbonate (CaCO3)
Calcium carbonate is a very important compound and is present in huge quantities in rocks such as:
Calcium compounds from calcium carbonate
Quick Lime (Calcium Oxide)
Heat the calcium carbonate up in a kiln and quick lime (calcium oxide) forms.
Slaked Lime (Calcium Hydroxide)
Add a few drops of water to the quick lime and slaked lime forms (sounds like a magic trick right?)
The presence of the aqueous solution of calcium hydroxide can be tested by bubbling carbon dioxide in it.
This results in a milky appearance to form.
Uses of calcium carbonate
Calcium carbonate has a ton of important industrial uses, ranging from making cement to decreasing the acidity of soil.
Uses of calcium carbonate include:
- Manufacturing of glass
- Manufacturing of cement
- In extraction of iron and steel in the blast furnace (to remove the impurity silicon(IV)oxide)
- To neutralize the acidity in soil and lakes caused by acid rain.
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