(slaked lime)
Slaked lime (calcium hydroxide) serves as a versatile compound with 82% of global consumption linked to construction and environmental sectors. Its unique properties, including a pH range of 12-13 in aqueous solutions (lime water), make it indispensable for chemical neutralization processes. The substance forms through controlled hydration of quicklime, requiring precise temperature management between 300-500°C to achieve optimal reactivity.
Advanced hydration reactors now achieve 95% conversion efficiency through automated moisture control systems. Key advantages include:
Supplier | Purity (%) | Particle Size (µm) | Reactivity (s) | Bulk Density (kg/m³) |
---|---|---|---|---|
ChemiCorp | 94.5 | 15-60 | 35 | 480 |
LimeTech | 97.8 | 5-45 | 28 | 520 |
HydraBase | 96.2 | 10-55 | 32 | 500 |
Custom formulations address specific industry requirements:
A municipal water plant in Ohio achieved 30% cost reduction using high-reactivity slaked lime
for pH correction. In construction, the Burj Almas project utilized slow-reacting formulations to prevent thermal cracking in massive concrete pours.
Proper storage in humidity-controlled silos (<40% RH) maintains product integrity for 18-24 months. Safety protocols mandate NIOSH-approved P100 respirators during bulk handling due to the material's alkaline nature.
Recent advancements in carbon capture applications demonstrate slaked lime's potential to sequester 1.2 tons of CO₂ per ton processed. With the global market projected to reach $7.8 billion by 2028 (CAGR 4.1%), manufacturers are investing in closed-loop production systems that reduce water consumption by 60% compared to conventional methods.
(slaked lime)
A: Slaked lime, chemically known as calcium hydroxide (Ca(OH)₂), is a compound formed by mixing quicklime (calcium oxide) with water. It is a white powder or crystalline solid used in construction, agriculture, and water treatment. Its alkaline properties make it valuable for pH adjustment and chemical reactions.
A: Slaked lime refers to calcium hydroxide in solid or powdered form, while lime water is a saturated solution of slaked lime dissolved in water. Lime water is often used in laboratories to detect carbon dioxide, whereas slaked lime is applied in industrial processes like mortar preparation.
A: Slaked lime is widely used in construction for making mortar and plaster. It also neutralizes acidic soils in agriculture and treats wastewater by removing impurities. Additionally, it serves as a food additive in products like pickles and corn tortillas.
A: Lime water is made by dissolving slaked lime (calcium hydroxide) in water and filtering the excess undissolved particles. The resulting clear solution is alkaline and reacts with carbon dioxide to form calcium carbonate. This reaction is commonly used to test for CO₂ in chemistry experiments.
A: While slaked lime is generally safe in controlled applications, direct contact can cause skin or eye irritation due to its alkaline nature. Protective gear like gloves and goggles should be used when handling it. Ingestion or prolonged exposure requires immediate medical attention.
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