Products
Calcium Hypochlorite 70% — Premium High-Chlorine Grade for Professional Water Treatment
Calcium hypochlorite 70 is the highest-standard chlorine grade commercially available for water disinfection and sanitation applications. With a minimum of 70% available chlorine, it delivers superior disinfecting power per unit weight compared to lower-grade alternatives, making it the preferred choice for municipal water treatment plants, large-scale swimming pool facilities, and industrial process water systems where maximum sanitization efficiency is required. Everglory Industrial manufactures and exports premium-grade calcium hypochlorite 70 to B2B buyers in over 60 countries, offering consistent product quality, UN 2880 certified drum packaging, complete export documentation, and competitive factory-direct pricing. Our ISO 9001 certified production facility ensures every batch meets stringent international specifications for available chlorine content, moisture control, and granule uniformity.
Why Calcium Hypochlorite 70% Is the Preferred High-Chlorine Grade
When procurement teams evaluate chlorine-based disinfectants for large-scale operations, calcium hypochlorite 70 consistently emerges as the optimal choice. The 70% available chlorine concentration provides several distinct advantages that translate directly into lower operating costs and better treatment outcomes for B2B buyers:
- Higher chlorine yield per kilogram: At 70% available chlorine, every kilogram of product delivers more active disinfecting capacity than 65% grade alternatives — reducing the total product volume needed for equivalent treatment results and lowering freight costs per unit of chlorine delivered
- Lower transportation cost per effective chlorine: Because you ship less product weight to achieve the same chlorine output, calcium hypochlorite 70 offers a meaningful freight cost advantage in container-load export shipments, especially for buyers in Africa and Latin America where sea freight represents a significant portion of landed cost
- Reduced storage footprint: Higher concentration means smaller inventory volumes for the same treatment capacity — an important consideration for facilities with limited warehousing space or in regions where dangerous goods storage is tightly regulated
- Faster dissolution and reaction rate: The high-purity 70% grade dissolves readily in water, achieving target free chlorine residuals more quickly — critical for municipal water systems with short contact times and for emergency water treatment scenarios
- Lower insoluble residue: Premium-grade calcium hypochlorite 70 produces minimal sediment upon dissolution, reducing maintenance frequency for dosing equipment, filtration systems, and storage tanks
Technical Specifications of Calcium Hypochlorite 70
Our calcium hypochlorite 70 is manufactured to meet international quality standards for drinking water treatment chemicals. Each production batch is tested and certified before shipment. The table below presents the complete technical specification:
Each shipment of calcium hypochlorite 70 is accompanied by a Certificate of Analysis (COA) documenting the actual available chlorine content, moisture, and granule distribution for the specific batch. This batch-level traceability is essential for municipal water authorities and industrial buyers who must maintain auditable treatment records for regulatory compliance.
Key Applications of Calcium Hypochlorite 70
The high chlorine concentration of calcium hypochlorite 70 makes it especially suitable for applications where rapid, high-capacity disinfection is required. Our B2B clients use this grade across the following sectors:
- Municipal drinking water treatment: Primary disinfection of potable water supplies for cities and rural communities — the 70% grade achieves target free chlorine residuals with lower dosage rates, reducing chemical handling volumes for plant operators
- Swimming pool and aquatic facilities: Commercial pools, water parks, and hotel resorts use calcium hypochlorite 70 granular for shock chlorination and tablet forms for sustained slow-release sanitization in skimmers and floaters
- Industrial process water: Cooling tower water treatment, paper mill process water, and food processing facility sanitation where high microbial kill rates are mandated by operational standards
- Wastewater effluent disinfection: Final-stage treatment of industrial and municipal wastewater before environmental discharge, ensuring compliance with coliform limits
- Aquaculture and fish farming: Water quality management in shrimp hatcheries and fish farms to control pathogenic bacteria and maintain biosecurity standards
- Emergency and humanitarian relief: Rapid-deployment water purification for disaster response, refugee camps, and NGO field operations where reliable chlorination is critical to prevent waterborne disease outbreaks
Dosing Guidelines for Calcium Hypochlorite 70
Proper dosing of calcium hypochlorite 70 depends on the application, water quality conditions, and target free chlorine residual. The following table provides general reference dosages for common B2B use cases. Actual dosing should always be determined by a qualified water treatment professional based on site-specific water analysis:
Always dissolve calcium hypochlorite 70 in a separate mixing tank before adding to the main water body. Never mix with acid directly, as this generates toxic chlorine gas. Store in original sealed drums away from heat sources, organic materials, and incompatible chemicals.
Packaging, Storage and Safe Handling
Calcium hypochlorite 70 is a Class 5.1 dangerous good (UN 2880) and requires specialized packaging for safe international transport. Everglory Industrial packs all shipments exclusively in UN 2880 certified plastic drums with inner PE liners, ensuring maximum moisture protection and full compliance with IMDG code requirements for maritime shipping. Available drum sizes include:
For storage, keep calcium hypochlorite 70 in its original sealed drum in a cool, dry, well-ventilated area away from direct sunlight, heat sources, acids, and organic combustible materials. Do not stack drums more than three layers high. Under proper storage conditions, the shelf life is 24 months from the manufacturing date. Always refer to the provided Material Safety Data Sheet (MSDS) for complete handling, first aid, and emergency response procedures.
Quality Assurance and Certifications
Every order of calcium hypochlorite 70 from Everglory Industrial is backed by a comprehensive quality assurance system. Our production facility operates under ISO 9001 quality management certification, ensuring consistent manufacturing processes, documented quality control checkpoints, and full batch traceability from raw material intake to finished product loading. Each shipment includes:
- Certificate of Analysis (COA): Batch-specific test report documenting available chlorine content, moisture, and granule distribution
- Material Safety Data Sheet (MSDS): Available in English, French, and Spanish for customs clearance and end-user safety compliance
- UN 2880 packaging certificate: Confirms drum packaging meets IMDG code requirements for Class 5.1 dangerous goods maritime transport
- Certificate of Origin: Official chamber of commerce certified, with FTA certificate options for preferential tariff treatment in qualifying destination countries
- Third-party inspection support: We welcome SGS, BV, or Intertek pre-shipment inspections and can arrange loading supervision at our facility
Frequently Asked Questions
Q: What is the difference between calcium hypochlorite 70 and calcium hypochlorite 65?
The primary difference is available chlorine content: calcium hypochlorite 70 contains a minimum of 70% available chlorine, while the 65% grade contains a minimum of 65%. The 70% grade delivers approximately 8% more active chlorine per kilogram, which means lower dosage rates, reduced freight costs per unit of chlorine, and smaller storage requirements for the same treatment capacity. For large-volume B2B buyers, the 70% grade often provides better total landed cost despite a slightly higher per-ton price.
Q: What forms of calcium hypochlorite 70 do you supply?
We supply calcium hypochlorite 70 in two forms: granular (8-30 mesh) and tablets (3-inch / 200g slow-dissolving and 1-inch / 20g rapid-dissolving). Granular is typically used for shock chlorination and dosing systems, while tablets are used for sustained-release applications in skimmers, floaters, and er feeder systems. Both forms are available in all drum sizes from 5kg to 50kg.
Q: How should calcium hypochlorite 70 be stored to maintain quality?
Store in the original sealed drum in a cool, dry, well-ventilated area away from direct sunlight, heat, acids, and combustible organic materials. Do not exceed three-layer stacking. Under proper storage conditions, the shelf life of calcium hypochlorite 70 is 24 months from the manufacturing date. Once a drum is opened, reseal tightly after each use to prevent moisture absorption and chlorine degradation.
Q: What is the minimum order quantity for calcium hypochlorite 70?
Our standard MOQ for calcium hypochlorite 70 is 1 metric ton for trial orders. For regular orders, we recommend a full 20ft container (20-27 MT depending on drum size selection). OEM private label orders typically require a minimum of 5 tons. Contact us with your specific requirements and we will provide a tailored quotation.
Q: Can you provide free samples of calcium hypochlorite 70?
Yes. We provide 1-2 kg free samples of calcium hypochlorite 70 with a Certificate of Analysis for serious B2B buyers. The buyer covers international courier shipping costs (DHL, FedEx, or TNT). Samples are drawn from the same production batch that would be used for your bulk order, allowing you to verify actual product quality and performance before committing to a full shipment.
Q: What documents do you provide with each shipment?
Each shipment of calcium hypochlorite 70 includes: Commercial Invoice, Packing List, Certificate of Origin, MSDS (in your preferred language), Certificate of Analysis, Bill of Lading, and DG declaration form. For qualifying destinations, we can also provide embassy-legalized documents and FTA certificates (Form E, Form A, etc.) for preferential tariff rates. All documents are prepared in-house for smooth customs clearance.
Need premium calcium hypochlorite 70 for your operation? Contact Everglory Industrial today for a free quote with CIF pricing to your destination port. Our export team responds within 24 hours and communicates fluently in English, French, and Spanish. Send your requirements via WhatsApp or email — we are ready to support your procurement needs.
