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Calcium Hypochlorite

Calcium Hypochlorite is a strong disinfectant mainly used for water treatment and sanitation in East Africa.

Calcium Hypochlorite is a member of the chlorine-based disinfectants family, known for its powerful oxidizing capabilities.

Packaging

25kg bag, 50kg bag, 200L drum

Supply Region

East Africa, Kenya

Supplier

Zenco Systems Ltd

What is Calcium Hypochlorite?

Calcium Hypochlorite is a member of the chlorine-based disinfectants family, known for its powerful oxidizing capabilities. Chemically identified as Ca(ClO)₂, it is widely esteemed for sanitation and water treatment applications across industries. Water suppliers, municipal utilities, and agricultural operations in East Africa depend on it to maintain safe, potable water and hygienic conditions. The product’s ability to efficiently release free chlorine upon dissolution makes it a frontline agent in killing pathogens such as bacteria and viruses.

Its commercial significance in Kenya, Uganda, Tanzania, and neighboring countries comes from both its high chlorine content and stability compared to liquid bleach alternatives. Various sectors utilize Calcium Hypochlorite—from municipal water treatment plants purifying community water supplies to food processing facilities requiring sanitary water and industrial sites managing wastewater. The product forms a critical component of East Africa’s water safety infrastructure, supplied reliably by firms like Zenco Systems Ltd that understand local regulatory requirements and logistics.

Calcium Hypochlorite: Detailed Product Overview

Calcium Hypochlorite is a white granular or powder solid with the chemical formula Ca(ClO)₂. In its pure form, it contains approximately 65-70% available chlorine, which readily dissociates when dissolved in water. This dissociation releases hypochlorous acid (HOCl), the active disinfecting species, and chloride ions. The killing mechanism relies on oxidation and chlorination of microbial cell components, disrupting cell walls, enzymes, and DNA, making it extremely effective in pathogen inactivation.

This compound is preferred over gaseous chlorine or sodium hypochlorite in applications demanding a stable, easy-to-transport solid, especially in the hot and humid climates of East Africa. Calcium Hypochlorite is more stable over time compared to liquid bleach, offering longer shelf life under proper storage conditions. It also provides a higher concentration of available chlorine by weight than many other chlorine disinfectants.

Because of its strong oxidizing nature, Calcium Hypochlorite also acts as a bleaching agent, utilized in textile and paper industries. In water treatment, it is dosed carefully—too much can produce harmful chlorinated byproducts and taste issues, while too little fails to achieve disinfection. Thus, Zenco Systems Ltd emphasizes precise technical support for optimal dosing.

Key performance characteristics include rapid dissolution in water, broad-spectrum antimicrobial activity, and compatibility with most water treatment systems. Critical properties buyers assess are purity, available chlorine content, particle size (affecting solubility), and chemical stability. Quality assurance via Certificates of Analysis ensures compliance with industrial water treatment standards.

Applications and Uses of Calcium Hypochlorite

Water Disinfection

In municipal water treatment, Calcium Hypochlorite is used to disinfect raw or filtered water by releasing chlorine to eliminate pathogens. The compound is typically dosed to maintain residual chlorine levels between 0.2 and 0.5 mg/L, protecting public health by controlling bacteria and viruses. Its preference in East African utilities stems from solid form ease of transport and storage, especially in rural or off-grid locations. Proper dosing and monitoring prevent formation of chlorinated byproducts.

Swimming Pool Sanitation

Calcium Hypochlorite is a standard chlorinating agent in swimming pools, providing both disinfection and algae control. It is dosed periodically to maintain free chlorine levels around 1-3 mg/L, ensuring swimmers’ safety by reducing waterborne illnesses. The solid form allows flexible application in different pool sizes and is favored for its high chlorine content and slow degradation in sunlight compared to liquid alternatives.

Industrial Wastewater Treatment

Industries use Calcium Hypochlorite to treat wastewater streams by inactivating pathogens and oxidizing organic contaminants. Its strong oxidative effect helps break down complex organic molecules and reduces biological oxygen demand (BOD). Typical applications include textile, food processing, and manufacturing sectors that produce wastewaters needing microbial control before discharge or reuse.

Bleaching Agent in Detergents

As a bleaching powder, Calcium Hypochlorite is incorporated into detergent formulations for textiles and paper products. It delivers strong oxidation to remove stains, whiten fabrics, and enhance brightness. The dosage and blending ratios vary depending on product formulation, but the standardized available chlorine content ensures predictable bleaching performance.

Food Processing Sanitation

Food processing plants use Calcium Hypochlorite to sanitize water and equipment surfaces, ensuring microbial control during production. It is applied in CIP (clean-in-place) systems or as a wash to reduce microbial contamination on fruits, vegetables, and packaging materials, supporting food safety compliance. Controlled dosing prevents residues that could affect food quality.

Textile Bleaching

In textile manufacturing, Calcium Hypochlorite serves to bleach cotton and other fibers by oxidizing natural pigments. It improves fabric whiteness prior to dyeing and finishing. Precise control of concentration and exposure time avoids fabric damage and ensures uniform bleaching results favored by manufacturers.

Paper Bleaching

Paper mills employ Calcium Hypochlorite as an oxidizing agent to whiten pulp fibers, enhancing the brightness and cleanliness of paper products. Its high available chlorine content allows efficient removal of lignin and other impurities. Usage parameters are tightly governed to balance bleaching effectiveness and pulp integrity.

Looking for alternatives for a specific process? Browse the full Agricultural Chemicals range or ask our technical team which grade fits your application.

Benefits and Advantages

High Chlorine Content

Calcium Hypochlorite typically delivers about 65-70% available chlorine, making it a very concentrated disinfectant. Because of this, smaller quantities achieve effective microbial kill, lowering shipping and storage costs compared to less concentrated alternatives.

Stability and Shelf Life

Unlike liquid bleach, Calcium Hypochlorite remains stable if stored properly in dry, ventilated conditions. This stability is crucial for East African markets where transport and storage conditions can be challenging, ensuring consistent product efficacy over time.

Broad Spectrum Disinfection

The product’s mechanism involves generation of hypochlorous acid, which acts broadly against bacteria, viruses, and fungi. This comprehensive action suits diverse applications from potable water disinfection to industrial wastewater treatment, reducing the need for multiple chemicals.

Operational Flexibility

Its solid form allows flexible dosing and easy handling with standard equipment, enabling users in different industries to tailor chlorine supply rates easily. The granular and powder forms integrate well in water treatment and bleaching processes with predictable performance.

Packaging Information

Calcium Hypochlorite is commonly supplied in 25kg and 50kg bags for retail and industrial customers, as well as in larger 200L drums for bulk users. For logistics across Kenya, Uganda, and Tanzania, these packaging options balance ease of transport with safe handling. Zenco Systems Ltd ensures packaging meets international standards to protect the product from moisture and contamination during storage and distribution. Bulk purchase inquiries for customized packaging are welcomed to suit project scale and delivery methods.

Standard formats: 25kg bag, 50kg bag, 200L drum

Technical Specifications

GradeConfirm with supplier
PurityConfirm with supplier
Density1.25-1.30 g/cm³ (bulk density typical)
FormulaCa(ClO)₂
Packaging25kg bag, 50kg bag, 200L drum
AppearanceWhite granular or powder solid
CAS Number7778-54-3
SolubilitySparingly soluble in water, releases free chlorine upon dissolution
Chemical NameCalcium Hypochlorite
Available ChlorineApprox. 65-70%
Storage ConditionsCool, dry, ventilated, away from combustibles
pH (1% aqueous solution)11-13 (alkaline)

Applications

  • Water disinfection
  • Swimming pool sanitation
  • Industrial wastewater treatment
  • Bleaching agent in detergents
  • Food processing sanitation
  • Textile bleaching
  • Paper bleaching

Technical Data Sheet (TDS)

GradeConfirm with supplier
PurityConfirm with supplier
Density1.25-1.30 g/cm³ (bulk density typical)
FormulaCa(ClO)₂
Packaging25kg bag, 50kg bag, 200L drum
AppearanceWhite granular or powder solid
CAS Number7778-54-3
SolubilitySparingly soluble in water, releases free chlorine upon dissolution
Chemical NameCalcium Hypochlorite
Available ChlorineApprox. 65-70%
Storage ConditionsCool, dry, ventilated, away from combustibles
pH (1% aqueous solution)11-13 (alkaline)

Product Features

  • - High available chlorine content (~65-70%)
  • - White granular or powder solid
  • - Strong oxidizing agent
  • - Stable solid form for long-term storage
  • - Dissolves in water releasing hypochlorous acid
  • - Broad-spectrum antimicrobial action

Industries Served

  • - Municipal water treatment
  • - Agriculture and irrigation
  • - Food processing
  • - Textile manufacturing
  • - Paper production
  • - Swimming pool maintenance
  • - Industrial wastewater management

Product Overview

Frequently Asked Questions About Calcium Hypochlorite

What is Calcium Hypochlorite used for in water treatment?

It is primarily used to disinfect drinking water by releasing chlorine that kills harmful bacteria and viruses, ensuring the safety of municipal and rural water supplies.

How is Calcium Hypochlorite typically dosed in pool sanitation?

Pools usually require maintaining free chlorine levels between 1-3 mg/L, with Calcium Hypochlorite added periodically as a granular form to sustain this range and control algae and pathogens.

Can Zenco Systems Ltd supply Calcium Hypochlorite outside Kenya?

Yes, Zenco Systems Ltd supplies across East Africa including Uganda, Tanzania, Rwanda, Burundi, and surrounding regions, with logistics support for cross-border deliveries.

Is Calcium Hypochlorite safe for use in food processing sanitation?

When used at recommended concentrations and properly rinsed, it effectively sanitizes equipment and surfaces without leaving harmful residues, complying with food safety standards.

What packaging sizes are available for Calcium Hypochlorite?

Standard sizes include 25kg and 50kg bags and 200L drums, suitable for various scales of use from small businesses to large industrial operations.

What is the shelf life of Calcium Hypochlorite stored under proper conditions?

Stored in a cool, dry, and ventilated area, the product remains effective for 1 to 2 years; exposure to moisture or heat reduces its stability.

Does Calcium Hypochlorite degrade over time?

Yes, it slowly decomposes especially if exposed to humidity or incompatible substances, which lowers available chlorine and disinfectant efficiency.

What PPE is recommended when handling Calcium Hypochlorite?

Protective gloves, goggles, and dust masks are essential to prevent irritation from dust and contact with skin and eyes.

How does Calcium Hypochlorite differ from other chlorine disinfectants?

It is a solid with higher chlorine concentration and greater stability compared to sodium hypochlorite liquid, making it preferred for bulk storage and transport.

Can Calcium Hypochlorite be mixed with other chemicals?

It should not be mixed with acids or organic materials due to risk of violent reactions; always follow safety guidelines and supplier instructions.

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