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Chemical Formula: Ca(OH)₂
Other Names: Slaked lime, hydrated lime
Physical Properties:
A white powdery solid, slightly soluble in water (solubility ~0.165 g/100 mL at 20°C). Its aqueous solution is called lime water, and the suspension is called lime milk or lime slurry.
Density: 2.24 g/cm³
Melting Point: 580°C (decomposes into CaO and H₂O)
Chemical Properties:
A strong base with general properties of alkalis, reacting with acids, acidic oxides (e.g., CO₂, SO₂), and salts (e.g., Na₂CO₃).
Reacts with CO₂ in the air to form calcium carbonate (CaCO₃):Ca(OH)2+CO2→CaCO3↓+H2O
Calcium hydroxide (Ca(OH)₂) is a commonly used alkaline absorbent in flue gas desulfurization (FGD), widely applied in the treatment of sulfur-containing flue gases from coal-fired power plants, industrial boilers, and other similar facilities.
Calcium hydroxide achieves desulfurization by undergoing neutralization reactions with sulfur oxides (SO₂, SO₃) in flue gas. The core reactions are as follows:
Reaction with Sulfur Dioxide (SO₂)
Absorption Stage:Ca(OH)2+SO2→CaSO3↓+H2O
This generates calcium sulfite (CaSO₃) precipitate.
Reaction with Sulfur Trioxide (SO₃)Ca(OH)2+SO3→CaSO4+H2O
This directly forms calcium sulfate, reducing acidic pollutant emissions.
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FAQ
Q: Are you a trading company or a factory?
A: We are a factory.We have two factories and a limestone mine.
Q: What are the advantages of your products?
A: Our products have high purity and minimal impurities. The highest purity of calcium hydroxide is 99.5%.
Q: What payment methods are supported?
A: T/T、L/C、D/P.
Q: Do you have any certificates?
A: Yes, we have ISO9001 and SGS certifications, etc.
Q: Do you provide free samples?
A: Yes.
