Calcium Hydroxide (Ca(OH)₂), commonly known as Hydrated Lime or Slaked Lime, is a versatile, white, odorless, and fine powder produced by the controlled hydration of high-purity quicklime (Calcium Oxide).
It is an alkaline compound with strong neutralizing, coagulating, and purifying properties, making it indispensable in a wide range of industrial, environmental, and pharmaceutical/food-grade applications.
| Parameter | Test Result | Unit |
|---|---|---|
|
Physical Appearance |
White light powder |
– |
|
Moisture |
≤ 1.00 |
% |
|
Density g/cm3 |
2.21 |
% |
|
Purity % |
≥ 95.00 |
% |
|
As CaCO3 % |
0.58 |
% |
|
Substance insoluble in HCl % |
0.007 |
% |
|
Cl % |
0.0005 |
% |
|
Fe % |
0.0003 |
% |
Used in mortar, plaster, whitewash, and soil stabilization for enhanced strength, plasticity, and durability. Reacts with carbon dioxide over time to form Calcium Carbonate, contributing to hardened structures. Essential in autoclaved aerated concrete (AAC) and other engineered construction materials.
Functions as a pH adjuster, coagulant, and flocculants for removing impurities, heavy metals, and suspended solids.
Widely used in potable water treatment plants and industrial wastewater systems to neutralize acidity.
Employed in flue gas desulfurization (FGD), sludge stabilization, and industrial effluent neutralization.
Calcium Hydroxide is a strongly alkaline substance. Contact with moisture or body fluids may cause skin or eye irritation and respiratory discomfort if inhaled as dust. It reacts with acids to release heat and may form calcium salts.
Use chemical-resistant gloves, goggles, and respiratory protection when handling powder. Avoid generating airborne dust. Maintain adequate ventilation in work areas.
Store in a cool, dry, and sealed environment. Prevent contact with moisture and incompatible substances such as acids and ammonium salts. Keep containers tightly closed to prevent carbonation by atmospheric CO₂.
Avoid dust generation. Sweep or vacuum dry material into sealed containers for reuse or disposal. For slurry spills, contain and collect with absorbent material; wash area with water after cleanup if safe to do so.
Calcium Hydroxide is not classified as dangerous goods under most transport regulations, but it should be handled as a corrosive alkaline substance according to industrial safety practices.
Full SDS/MSDS and compliance certificates available upon request. Product meets REACH, RoHS, and Codex Alimentarius specifications for industrial and food-grade materials.
High-quality Quicklime (CaO) derived from pure limestone is selected as the primary input. It is tested for available CaO content, reactivity, and impurity levels before processing.
The quicklime is subjected to hydration (slaking) in a controlled reactor system. Water is added in precise proportion, generating heat and forming hydrated lime according to the reaction: CaO + H₂O → Ca(OH)₂ + Heat
The freshly slaked lime is cooled, milled, and classified to achieve desired fineness and particle size distribution.
The product may be filtered and dried to remove free moisture and impurities, ensuring consistent reactivity and chemical stability.
Each batch undergoes rigorous testing for available Ca(OH)₂ %, fineness, moisture, and impurity profile. The final product is packed in moisture-resistant bags or bulk containers, ensuring safety during storage and transportation.
