Description Technical Specifications of Hydrated Lime 90% Chemical Name: Calcium Hydroxide Chemical Formula: Ca(OH)₂ Common Names: Hydrated Lime, Slaked Lime, Builders’ Lime Purity (Ca(OH)₂): ≥ 90% Calcium Oxide (CaO) Equivalent: Approx. 68–72% Appearance: Fine white dry powder Moisture Content: ≤ 1% Residue (Sieve 212 µm): ≤ 1% Bulk Density: 0.5 – 0.8 g/cm³ pH (10% Solution): 12.4 (strongly alkaline) Solubility: Slightly soluble in water, forming an alkaline solution Packaging: 25 kg and 50 kg HDPE bags, jumbo bags, or bulk delivery Shelf Life: Up to 12 months if stored in dry, sealed conditions Key Applications of Calcium Hydroxide 90% 1. Water and Wastewater Treatment Hydrated lime is widely used for pH correction, softening, and removal of heavy metals in water and wastewater treatment plants. It helps in neutralizing acidic effluents and improving floc formation. 2. Construction and Building Materials In construction, calcium hydroxide is used in mortar, plaster, and whitewash. It enhances the plasticity and workability of mixes, contributing to stronger, more durable structures. 3. Agriculture As a soil conditioner and pH regulator, hydrated lime neutralizes soil acidity and enhances nutrient availability. It is also used for treating animal waste and composting. 4. Chemical Industry Hydrated lime acts as a precursor or intermediate in the production of calcium-based chemicals, including calcium salts and lubricants. 5. Environmental Applications Used for air pollution control, it captures sulfur dioxide (SO₂) in flue gas treatment. It is also effective in treating industrial waste streams with acidic properties. Benefits of Using Hydrated Lime 90% ✅ High purity for consistent chemical performance ✅ Strong alkalinity for effective pH adjustment ✅ Cost-effective and eco-friendly alternative to synthetic chemicals ✅ Versatile across multiple industries ✅ Readily available and easy to handle in powder form Safety and Handling While Calcium Hydroxide 90% is not classified as a hazardous chemical, it is caustic and should be handled with care. Use gloves, goggles, and a dust mask to avoid skin, eye, or respiratory irritation. Store in a dry, well-ventilated area, away from moisture and acids. Refer to the Safety Data Sheet (SDS) for complete safety instructions. Conclusion Hydrated Lime 90% / Calcium Hydroxide 90% is a high-purity, multifunctional compound offering exceptional value in water treatment, construction, agriculture, and beyond. Its strong alkalinity, reliability, and environmental compatibility make it a top choice for professionals seeking performance and sustainability. Whether for stabilizing soil, treating water, or improving mortar strength, hydrated lime is a time-tested and essential material across many industries.
