Calcium hydroxide (traditionally called slaked lime) is an inorganic compound with the chemical formula Ca(OH)2. It is a colorless crystal or white powder and is produced when quicklime (calcium oxide) is mixed or slaked with water.
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Calcium hydroxide

Calcium Oxide (CaO)

Calcium oxide, also known as quicklime or burnt lime, is a chemical compound composed of calcium and oxygen. It is a white, caustic, crystalline solid at room temperature. Calcium oxide is produced by heating calcium carbonate (such as limestone) in a process called calcination. Here are some key details about calcium oxide:

Chemical formula: CaO
Molar mass: 56.0774 g/mol
Appearance: White crystalline solid

Uses of Calcium Oxide:
1. Construction Industry: Calcium oxide is widely used in the construction industry for various purposes. It is used in the production of cement, mortar, and concrete.
2. Water Treatment: Calcium oxide is used in water treatment processes to adjust the pH levels and remove impurities.
3. Steel Manufacturing: It is used as a flux in steel manufacturing to remove impurities and improve the quality of the final product.
4. Agriculture: Calcium oxide is used in agriculture as a soil amendment to neutralize acidic soils and provide essential nutrients to plants.
5. Chemical Industry: It is used in the production of various chemicals, including calcium carbide, calcium hydroxide, and calcium chloride.

Calcium Hydroxide (Ca(OH)2)

Calcium hydroxide, also known as slaked lime or hydrated lime, is a chemical compound composed of calcium, oxygen, and hydrogen. It is a white, powdery substance with a low solubility in water. Calcium hydroxide is produced by adding water to calcium oxide in a process called slaking. Here are some key details about calcium hydroxide:

Chemical formula: Ca(OH)2
Molar mass: 74.093 g/mol
Appearance: White powder

Uses of Calcium Hydroxide:
1. Building Materials: Calcium hydroxide is used in the production of lime mortar and plaster, which are essential in construction and restoration projects.
2. Water Treatment: It is used in water treatment processes to control pH levels, remove impurities, and disinfect water.
3. Food Industry: Calcium hydroxide is used in food processing as a firming agent, pH regulator, and preservative.
4. Agriculture: It is used as a soil amendment to improve soil pH and provide essential nutrients to plants.
5. Dental Industry: Calcium hydroxide is used in dental materials, such as dental cements and liners, for various dental procedures.

Overall, calcium oxide and calcium hydroxide have various industrial, agricultural, and chemical applications. Their unique properties and reactivity make them valuable compounds in different fields.