Hydrated Lime (Calcium Hydroxide – Ca(OH)₂)
Other names: Slaked Lime, Lime Putty, Milk of Lime, Mason Lime
Size: 200–325 mesh
Manufacturer: Vietnam Technology Mineral JSC
Description:
Hydrated lime is produced by mixing quicklime (CaO) with water in a process called hydration or slaking. The reaction is:
CaO + H₂O → Ca(OH)₂ + Heat
This exothermic process forms calcium hydroxide — a fine, white powder that is less reactive than quicklime but retains excellent adhesive and plastic properties, making it valuable in construction and industrial applications.
Compared to quicklime, hydrated lime is:
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Safer to handle
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Easier to store and transport (bulkier form)
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Longer shelf life when stored properly
Key Specifications:
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Ca(OH)₂ content: ≥ 85–90% (≥ 90% for high-quality grade)
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Fineness: 200–325 mesh for superior workability and reactivity
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Moisture content: ≤ 10–12% for optimal shelf life
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Impurities: ≤ 1–2% each of magnesium, silica, alumina, and iron
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Consistency: Stable fineness, moisture, and chemical composition across batches
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Density: High bulk density for greater active material per unit volume
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Activity: Strong carbonation capacity in mortar/concrete, ensuring high alkalinity
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Color: Pure white without gray or off-tint, indicating purity and complete hydration
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Setting time: Approx. 2 weeks for lime putty, 1 month for powder form
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Packaging: Airtight to prevent CO₂ absorption and preserve quality
Applications:
Hydrated lime is widely used in:
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Construction: Mortar, plaster, whitewash, soil stabilization
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Water & Wastewater Treatment: pH control, softening, impurity removal
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Chemical Industry: Production of chemicals, neutralization of acids
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Paper & Pulp: Causticizing in kraft process
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Environmental Uses: Flue gas treatment, waste stabilization
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Agriculture: Soil conditioning, pathogen control, odor management
Production Advantage:
Our hydrated lime is produced from premium quicklime using efficient hydration technology, strict quality control, and fine grinding to ensure maximum purity, whiteness, and performance in all applications.
