Get best quality Calcium hydroxide sourced from Wedge India. Calcium hydroxide commonly known as hydrated lime or slaked lime, is a widely used chemical compound with the formula Ca(OH)₂. This compound has a variety of applications across different industries due to its properties. Calcium hydroxide is used in a variety of industries and is widely manufac- tured and supplied. The key inputs (calcium oxide and calcium carbonate) are currently abundant and supplied from domestic sources.
Chemical Properties:
• Chemical Formula: Ca(OH)₂
• Molecular Weight: 74.09 g/mol
• Appearance: White powder or colorless crystals
• Solubility: Sparingly soluble in water (forming limewater)
• pH: Highly alkaline (pH of around 12.4 in a saturated solution)
• Density: 2.211 g/cm³
• Melting Point: Decomposes at around 580°C (1,076°F)
Production:
Calcium hydroxide is produced by the hydration (slaking) of calcium oxide (quicklime):
\text{CaO} + \text{H}_2\text{O} \rightarrow \text{Ca(OH)}_2
Applications: Water Treatment, Steel manufacturing and other metal refining, Environmental use including acid mine drainage, Chemical manufacturing, Construction
Construction:
• Mortar and Plaster: Essential component in the preparation of mortar and plaster for building construction.
• Whitewashing: Used for whitewashing walls and ceilings.Water Treatment:
• pH Regulation: Adjusts the pH of water, making it less acidic.
• Water Softening: Precipitates calcium and magnesium ions to soften water.Agriculture:
• Soil Amendment: Neutralizes acidic soils, enhancing soil quality.
• Pest Control: Acts as a pesticide and fungicide.Food Industry:
• Food Additive: Serves as a firming agent (E526) in canned fruits and vegetables.
• Sugar Refining: Purifies raw sugar.Chemical Industry:
• Chemical Synthesis: Involved in the production of various chemicals like calcium stearate and calcium soaps.
• Neutralization: Used to neutralize acidic waste streams.Environmental Applications:
• Flue Gas Treatment: Removes sulfur dioxide from exhaust gases in flue gas desulfurization processes.
• Waste Treatment: Treats industrial wastes and sewage sludge.Personal Care Products:
• Cosmetics: Used as a pH adjuster in cosmetics and personal care products.
Safety and Handling:
• Health Hazards: Can cause skin and eye irritation. Inhalation of dust may cause respiratory irritation.
• Safety Measures: Use personal protective equipment such as gloves, goggles, and masks. Ensure adequate ventilation in the working area.
• First Aid:
• Skin Contact: Wash thoroughly with water.
• Eye Contact: Rinse immediately with plenty of water and seek medical attention if irritation persists.
• Inhalation: Move to fresh air and seek medical attention if symptoms persist.
Storage and Shelf Life
Calcium hydroxide is stable and non-combustible. When stored properly, calcium hydroxide can have a shelf life
of approximately 6 months.
Calcium hydroxide, or hydrated lime, is a versatile compound with a wide range of applications in construction, water treatment, agriculture, the food industry, and more. Its ability to neutralize acids and regulate pH, along with its availability and cost-effectiveness, makes it an essential material in many industrial processes.