Calcium Hypochlorite
(Perchlorine)
Overview & Purity
Calcium hypochlorite (Ca(ClO)₂), commonly known as perchlorin or bleaching powder, is a strong oxidizing agent widely used in water treatment, disinfection, and chemical applications. It is produced in different purity grades, ranging from industrial-grade (≥65%) to high-purity grade (≥70%), ensuring suitability for municipal water treatment, swimming pools, and industrial processes. High-quality calcium hypochlorite provides reliable chlorine content and consistent disinfectant performance.
Physical Forms & Appearance
Calcium hypochlorite is available primarily in solid forms, including granules, tablets, and powder. The material is typically white to light yellow, crystalline, and has a strong chlorine odor. It is highly reactive and hygroscopic, requiring careful handling. Liquid forms are less common due to stability concerns. Analytical testing includes active chlorine content, moisture level, and insoluble matter, ensuring consistent quality and performance.
Standards & Quality Assurance
Production of calcium hypochlorite follows ISO, ASTM, and WHO standards, guaranteeing consistent chlorine content, purity, and safety. Each batch undergoes quality control tests for active chlorine, pH, and contaminants. Certificates of Analysis (COA) are provided to validate compliance and reliability for water treatment, industrial, and swimming pool applications.
Applications Across Industries
Calcium hypochlorite has a wide range of applications:
Water Treatment:
Primary use in disinfecting drinking water, wastewater, and cooling towers.
Swimming Pools & Recreational Water:
Used to maintain hygienic conditions and control microbial growth.
Industrial Applications:
Acts as a bleaching agent in textiles, paper, and pulp industries.
Sanitation & Hygiene:
Used in hospitals, food processing, and municipal sanitation systems.
Oxidizing Agent:
Employed in chemical manufacturing and certain laboratory processes.
Water Treatment:
Primary use in disinfecting drinking water, wastewater, and cooling towers.
Swimming Pools & Recreational Water:
Used to maintain hygienic conditions and control microbial growth.
Industrial Applications:
Acts as a bleaching agent in textiles, paper, and pulp industries.
Sanitation & Hygiene:
Used in hospitals, food processing, and municipal sanitation systems.
Oxidizing Agent:
Employed in chemical manufacturing and certain laboratory processes.
Packaging Options
Calcium hypochlorite is typically supplied in 1–50 kg polyethylene or plastic drums, pails, or fiber drums. Packaging is designed to be moisture-resistant and airtight, preventing degradation, loss of chlorine content, and accidental reactions during storage and transportation. Proper packaging ensures safe handling and longevity of the product.
Safety & Environmental Considerations
Calcium hypochlorite is a strong oxidizer and can react violently with organic materials, acids, and reducing agents. Direct contact with skin or eyes can cause irritation or burns. Dust inhalation can irritate the respiratory system. Proper personal protective equipment (PPE) including gloves, goggles, and masks is essential. Spills must be contained and neutralized promptly. The material should never be mixed with incompatible substances. Environmental precautions include preventing runoff into water bodies to avoid aquatic toxicity.
Storage & Handling
Calcium hypochlorite should be stored in a cool, dry, and well-ventilated area, away from sunlight, heat sources, acids, and organic materials. Solid forms must be kept in sealed, moisture-proof containers, and storage areas should comply with local fire and safety regulations. Proper storage preserves active chlorine content, prevents decomposition, and ensures safe handling.
Conclusion
Calcium hypochlorite is an essential chemical for water treatment, disinfection, industrial bleaching, and sanitation applications. With multiple purity grades, standardized production, and strict quality control, it provides reliable and effective solutions for a wide range of industries. Proper handling, storage, and safety measures are critical to maintain efficiency, stability, and environmental responsibility, making it a trusted choice for municipal, industrial, and commercial use worldwide.
