Lime Hydrated Lime
Hydrated Lime
Ca(OH)₂ Calcium Hydroxide
Hydrated (slaked) lime produced by controlled hydration of quicklime, supplied in general-purpose, special high-purity, and economy grades for water treatment, construction mortars and plasters, flue-gas treatment, and chemical processing. Certificate of analysis (CoA) issued per shipment.
Ca(OH)₂ ≥ 88%
Physical Properties
Formula
Ca(OH)₂
Molecular Weight
74.09 g/mol
Specific Gravity
2.2 – 2.4
Bulk Density
400–600 kg/m³
pH
11 – 12.5
Solubility
0.173 g/100cm³
Synonyms: Hydrated Lime, Slaked Lime · White powder.
Grades & Chemical Analysis
Five hydrated lime grades — from economical construction lime to ultra-fine, high-purity and food-grade powders. Select a grade to view its full analysis; every shipment includes a certificate of analysis.
General Grade — Multi-purpose
200 – 250 Mesh
- Fineness
- 200# ≤ 25%
- Ca(OH)₂
- 90 – 93%
- Available CaO
- 68.2 – 70.5%
- CaCO₃
- 4 – 7%
- Free CaO
- < 1.5%
- MgO
- < 0.5%
- SiO₂
- < 0.3%
- Al₂O₃ / Fe₂O₃
- < 0.2 / 0.15%
- L.O.I.
- 19 – 25%
- Moisture
- < 0.1%
Ranges are typical specification values; Available CaO, R₂O₃ and Activity are reported per source. General & Special grades additionally hold P₂O₅ < 0.02%, MnO < 0.02%, Na₂O < 0.1%, K₂O < 0.05%, SO₃ trace. The Ultra-Pure grade meets food, sugar-refining and pharmaceutical purity limits. A batch-specific CoA is issued per shipment.
Bespoke Production
Don’t see the grade you need?
If none of the grades above matches your target chemistry, fineness, or packaging, tell us your requirements — we produce custom hydrated lime grades to your exact specification.
Applications
Hydrated lime is a workhorse reagent across water, construction, and process industries.
Water & Wastewater Treatment
pH correction, softening and heavy-metal precipitation.
Flue-Gas Desulfurization
SO₂ scrubbing in dry and semi-dry systems.
Mortars, Plasters & AAC Blocks
Workability, plasticity and long-term durability.
Soil Stabilization
Subgrade drying, plasticity control and strength gain.
Sugar Refining
Juice purification and carbonatation.
Chemical Manufacturing
Calcium-based salts and process intermediates.
Leather Processing
Liming and unhairing of hides.
Agriculture / Soil Conditioning
Acid-soil correction and nutrient availability.
Acid Neutralization
Safe treatment of acidic effluents and spills.
Packing & Storage
- 20–25 kg bags, or 1 MT jumbo bags
- Store in a dry, covered place away from moisture
- Shelf life: up to 2 years under proper storage conditions