Lime Quicklime
Quicklime
CaO Calcium Oxide
High-calcium quicklime produced by calcining limestone, supplied in standard, fine-ground, and high-reactivity milled grades for steelmaking, water and flue-gas treatment, sugar refining, construction, and chemical manufacturing. Certificate of analysis (CoA) issued per shipment.
CaO ≥ 88%
Physical Properties
Formula
CaO
Molecular Weight
56.08 g/mol
Specific Gravity
3.2 – 3.4
Bulk Density
700–1200 kg/m³
pH
11 – 12
Solubility
1330 mg/L
Synonyms: Quicklime, Unslaked Lime, Industrial Lime, Burnt Lime, Calcined Limestone · White powder / granular.
Grades & Chemical Analysis
Three quicklime grades to match your process — from coarse standard lime to fast-slaking milled powder. Select a grade to view its full analysis; every shipment includes a certificate of analysis.
Standard Grade — Coarse, general-purpose
Mesh 70
- Particle Size
- ≤ 2 mm (No.10–100)
- CaO
- 88 – 90%
- CaCO₃
- 3 – 6%
- Free CaO
- < 1.5%
- MgO
- < 0.5%
- SiO₂
- < 0.7%
- Al₂O₃
- < 0.5%
- Fe₂O₃
- < 0.2%
- Na₂O / K₂O
- < 0.1 / 0.1%
- L.O.I.
- < 3%
Also across grades: P₂O₅ < 0.03%, MnO < 0.02–0.5%, SO₃ trace. Values are typical specification ranges; 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 quicklime grades to your exact specification.
Applications
Quicklime is a core reagent across metallurgy, environment, and process industries.
Steelmaking Flux
Slag formation and impurity removal in BOF & EAF.
Water & Wastewater Treatment
pH correction, softening and sludge conditioning.
Flue-Gas Desulfurization
SO₂ capture in power and industrial plants.
Soil & Ground Stabilization
Subgrade drying and load-bearing improvement.
Sugar Refining
Milk-of-lime for juice purification.
Construction & AAC Blocks
Autoclaved aerated concrete and mortars.
Chemical Manufacturing
Carbide, precipitated CaCO₃ and calcium salts.
Pulp & Paper
Causticizing in the kraft recovery cycle.
Leather Processing
Liming and unhairing of hides.
Packing & Storage
- 25 kg, 3-ply laminated PP bags, or 1–1.5 MT jumbo bags
- Store in a dry, covered place away from moisture
- Shelf life: up to 2 years under proper storage conditions