Top Calcium Hypochlorite Manufacturers: High Chlorine Content Options for B2B Buyers

Introduction

In the global water treatment and disinfection industry, calcium hypochlorite remains one of the most essential chemicals for effective sanitation. For B2B buyers seeking reliable suppliers, understanding the landscape of calcium hypochlorite manufacturers is crucial for making informed procurement decisions. This comprehensive guide explores top manufacturers, high chlorine content options, and key considerations for businesses looking to source this critical disinfectant chemical.

Whether you operate a water treatment facility, manage swimming pools, or run industrial bleaching operations, selecting the right calcium hypochlorite supplier can significantly impact your operational efficiency and cost-effectiveness. Let’s dive into what makes a manufacturer stand out in this competitive market.

Understanding Calcium Hypochlorite: The Basics for B2B Buyers

Calcium hypochlorite (chemical formula: Ca(ClO)₂, CAS Number: 7778-54-3) is a white granular or tablet compound widely recognized for its powerful oxidizing properties. The compound releases available chlorine when dissolved in water, making it highly effective for disinfection, bleaching, and sanitation applications.

Key Specifications B2B Buyers Should Know

Available Chlorine Content:

• Standard grade: 65% available chlorine
• Premium grade: 70% available chlorine
• Basic bleaching powder: 30-38% available chlorine

Physical Forms:

• Granular (various mesh sizes: 5-8 mesh, 8-30 mesh)
• Tablets (2g, 200g, 3-inch slow dissolution)
• Powder form for specific industrial applications

Storage Requirements:
Calcium hypochlorite must be stored in cool, dry conditions away from direct sunlight, organic materials, and combustible substances. The compound can decompose when exposed to moisture, heat, or acidic conditions, releasing chlorine gas.

Key Factors When Selecting Calcium Hypochlorite Manufacturers

Choosing the right manufacturer involves evaluating multiple criteria beyond just price. Here are the essential factors B2B buyers should consider:

1. Production Capacity and Consistency

Reliable manufacturers maintain consistent production schedules with monthly capacities ranging from 500 to 1,000+ metric tons. This ensures steady supply chains for long-term contracts and large-volume orders.

2. Quality Certifications

Look for manufacturers with ISO 9001 certification and compliance with international chemical safety standards. Quality documentation should include:

• Certificate of Analysis (COA)
• Material Safety Data Sheet (MSDS)
• Third-party testing reports

3. Chlorine Content Verification

High chlorine content directly correlates with product effectiveness. Premium manufacturers provide verified 65-70% available chlorine content with batch testing documentation. Lower content products may require higher dosages, increasing overall operational costs.

4. Packaging and Shipping Options

Professional manufacturers offer flexible packaging solutions:

• 25kg bags for smaller operations
• 50kg drums for medium-scale usage
• 1,000kg bulk bags for industrial facilities
• Customized packaging upon request

5. Payment and Trade Terms

Standard payment terms include L/C (Letter of Credit), T/T (Telegraphic Transfer), and D/P (Documents against Payment). MOQ (Minimum Order Quantity) typically ranges from 1 to 20 tons depending on the supplier.

Top Calcium Hypochlorite Manufacturers Overview

The global calcium hypochlorite manufacturing landscape is dominated by producers in China, with significant facilities in Shandong, Hubei, and Tianjin provinces. These regions benefit from established chemical infrastructure and access to raw materials.

Leading Manufacturing Regions

Shandong Province:
Home to multiple large-scale production facilities with export-oriented operations. Manufacturers here typically offer competitive pricing ranging from $850 to $1,100 per ton for 65-70% chlorine content products.

Hubei Province:
Known for technical-grade calcium hypochlorite with strong quality control systems. Suppliers in this region often cater to both domestic and international B2B markets.

Tianjin Area:
Strategic port location facilitates efficient export logistics. Manufacturers here specialize in pool-grade and water treatment applications with various tablet and granular options.

Price Range Indicators (2025-2026 Market)

• 65% Granular: $850-$1,050 per ton
• 70% Premium Grade: $1,050-$1,300 per ton
• Tablet Form (2g-200g): $900-$1,200 per ton
• Bulk Orders (20+ tons): Negotiable discounts available

Note: Prices fluctuate based on raw material costs, shipping distances, and order volumes.

High Chlorine Content Options for Specific Applications

Different industries require varying chlorine concentrations. Understanding these requirements helps B2B buyers match products to their specific needs.

Water Treatment Facilities

Municipal and industrial water treatment plants typically require 65-70% granular calcium hypochlorite for:

• Drinking water disinfection
• Wastewater treatment
• Industrial process water sanitation

High chlorine content reduces storage space requirements and transportation costs per unit of available chlorine.

Swimming Pool and Recreation Centers

Pool operators prefer tablet forms (2g to 200g) with slow-dissolution properties for:

• Consistent chlorine release
• Reduced handling frequency
• Safer application methods

65% available chlorine tablets provide optimal balance between effectiveness and cost-efficiency.

Textile and Paper Industries

Bleaching applications demand high-purity calcium hypochlorite with:

• Minimal impurity content
• Consistent particle size distribution
• Stable chlorine release rates

Manufacturers serving these sectors often provide customized specifications based on process requirements.

Agriculture and Food Processing

Disinfection in agricultural and food processing environments requires food-grade certified calcium hypochlorite with:

• Lower heavy metal content
• Specific packaging for contamination prevention
• Compliance with local food safety regulations

B2B Buying Guide: Steps to Secure Quality Supply

Step 1: Define Your Requirements

Document your specific needs including:

• Required chlorine content percentage
• Preferred physical form (granular, tablet, powder)
• Monthly or annual consumption volume
• Packaging specifications
• Delivery timeline

Step 2: Request Samples and Documentation

Before committing to large orders, request:

• Product samples for testing
• Recent COA from current production batches
• MSDS for safety compliance
• References from existing B2B clients

Step 3: Evaluate Supplier Capabilities

Assess potential manufacturers on:

• Production facility audits (virtual or in-person)
• Quality control procedures
• Emergency response protocols
• After-sales support services

Step 4: Negotiate Terms

Key negotiation points include:

• Unit price based on volume commitments
• Payment term flexibility
• Shipping and insurance responsibilities
• Quality guarantee and return policies

Step 5: Establish Long-term Partnerships

Building relationships with reliable manufacturers provides:

• Priority allocation during high-demand periods
• Better pricing through volume commitments
• Improved communication and problem resolution
• Potential for customized product development

FAQ: Common Questions from B2B Buyers

Q1: What is the shelf life of calcium hypochlorite?

A: Properly stored calcium hypochlorite maintains effectiveness for 12-24 months. Storage conditions significantly impact shelf life—keep products in original sealed containers, away from moisture, heat, and direct sunlight.

Q2: How do I verify the actual chlorine content?

A: Request third-party laboratory testing reports with each shipment. Reputable manufacturers provide COA showing available chlorine percentage, moisture content, and impurity levels for every production batch.

Q3: What safety precautions should my team follow?

A: Personnel handling calcium hypochlorite should wear protective equipment including gloves, goggles, and respiratory protection. Ensure proper ventilation in storage and handling areas. Never mix with acids or organic materials.

Q4: Can manufacturers provide customized packaging?

A: Yes, most established manufacturers offer customized packaging solutions based on order volume. Minimum quantities apply for custom packaging requests—typically 5+ tons.

Q5: What are typical lead times for international orders?

A: Production lead times range from 7-15 days after order confirmation. Shipping times vary by destination: 15-25 days to Southeast Asia, 25-35 days to Europe, and 30-40 days to the Americas.

Q6: How do I compare prices between manufacturers?

A: Compare based on cost per unit of available chlorine, not just price per ton. A 70% product may cost more upfront but deliver better value through reduced dosage requirements and lower shipping costs per effective chlorine unit.

Q7: What certifications should I look for?

A: Essential certifications include ISO 9001 for quality management, REACH compliance for European markets, and local chemical registration requirements. Some applications may require additional industry-specific certifications.

Conclusion

Selecting the right calcium hypochlorite manufacturer is a strategic decision that impacts operational efficiency, safety, and bottom-line costs for B2B buyers. By focusing on chlorine content verification, production capacity, quality certifications, and reliable supply chains, businesses can establish partnerships that deliver consistent value.

The market offers numerous options across different price points and specifications. The key is matching your specific application requirements with manufacturers who demonstrate commitment to quality, safety, and customer service. Take time to evaluate potential suppliers thoroughly, request documentation and samples, and build relationships that support your long-term business objectives.

Ready to explore calcium hypochlorite options for your business? Reach out to qualified manufacturers today to discuss your specific requirements and receive customized quotations based on your volume needs and application specifications.