Calcium Hypochlorite 70% China - Disinfectant Hexagonal Drum 50kg

Calcium Hypochlorite 70% China – Water Disinfection & Aquaculture Sanitizer (50Kg Drum)

Calcium Hypochlorite 70% China is a premier inorganic bleaching and biocide chemical with the molecular formula Ca(ClO)₂ (technically designated as calcium hypochlorite 70). Imported directly from China, the product complies with Excellence Grade criteria under international technical standards and GB/T 10666, ensuring an active available chlorine content of at least 70.0%. Supplied as uniform, low-dust white granules (calcium hypochlorite granular), this heavy-duty chlorine 50kg drum is the top-tier biosecurity choice for industrial aquaculture operators looking to buy calcium hypochlorite bulk for aquaculture water disinfection, commercial swimming pool chlorination, and industrial water sanitation.

Technical Specifications – Calcium Hypochlorite 70% (50kg Drum)

Key Technological Properties & Advantages of Calcium Hypochlorite 70%

• High Available Chlorine Activity (≥ 70.0%): Upon dissolution in water, calcium hypochlorite 70 rapidly releases hypochlorite ions (ClO⁻) and uncharged hypochlorous acid (HOCl). HOCl readily diffuses across microbial cell walls to denature intracellular enzymes and disrupt metabolic pathways, inactivating pathogens, viruses, and fungal spores within seconds.
• Low-Dust Granular Morphology (12–50 mesh ≥ 90%): Unlike standard bleaching powders that release fine airborne dust and cause acute respiratory discomfort, the product features classified granules with fines below 100 mesh restricted to ≤ 3.0%. The granules sink quickly to the bottom and dissolve evenly without surface dust loss.
• Controlled Moisture (< 1.5% wt) for Extended Shelf Life: Low residual moisture ensures the dry granules remain free-flowing, preventing self-decomposition and internal gas generation in tropical ambient storage conditions to guarantee stable potency over 24 months.
• Heavy-Duty UN-Certified 50kg Drum: Molded from virgin white high-density polyethylene with a tamper-evident airtight locking ring certified to UN dangerous goods specifications, the drum resists mechanical impact and completely prevents chlorine vapor leakage during transit.

Practical Applications in Water Disinfection & Aquaculture

Engineered for broad-spectrum biosecurity, chlorine 70 china is an indispensable chemical biocide across critical water treatment sectors:

• Aquaculture & Shrimp Farming: Primary disinfectant for reservoir ponds and grow-out ponds before stocking. Completely eradicates wild carrier fish, snails, and crabs; suppresses pathogenic Vibrio parahaemolyticus bacteria (AHPND/EMS agents), fungal spores, and microsporidia (EHP); and eliminates glowing water bacteria prior to stocking.
• Commercial Swimming Pools & Water Parks: Sanitizes pool water, maintains standard free available chlorine residual (1 – 3 ppm), oxidizes organic bather waste, and inhibits green, mustard, and black algae growth without excessively elevating insoluble residues.
• Industrial Water & Effluent Treatment: Destroys pathogenic coliform bacteria, oxidizes dissolved iron and manganese, controls biofilm formation in cooling systems, and removes color from wastewater effluent before environmental discharge.
• Livestock & Sanitary Biosecurity: Sanitizes livestock barns and veterinary facilities following disease outbreaks, decontaminates processing equipment in seafood packing houses, and provides emergency disinfection for flooded municipal water supplies.

Recommended Dosage & Safe Dissolution Protocol

• Shrimp Pond Preparation (Reservoir Disinfection): Apply 20 – 30 kg per 1,000 m³ of water (20 – 30 ppm). Run paddlewheel aerators continuously for 3 to 5 days to ensure complete biocide coverage and accelerate free chlorine dissipation prior to post-larvae stocking.
• Aquaculture Emergency Treatment (During Outbreaks): Apply a conservative dosage of 2 – 3 kg per 1,000 m³ of water during cool evening hours, combined with aggressive aeration to avoid stressing aquatic animals.
• Swimming Pool Sanitization: Routine daily maintenance requires 2 – 4 g per m³ of water; shock dosing to treat severe algal blooms requires 5 – 8 g per m³ of water in the evening.
• Mandatory Dissolution Protocol: Always adhere to the rule of adding small quantities of granules into clean water in a plastic bucket, stirring thoroughly until dissolved before broadcasting. Never pour water into concentrated dry chemical.

Supply Policy for Calcium Hypochlorite 70% at THP Chemical

Tan Hung Phu Chemical Co., Ltd. (THP Chemical) is a trusted distributor supplying genuine Calcium Hypochlorite 70% (China) nationwide:

• Certified compliant with Excellence Grade and GB/T 10666 standards, guaranteeing available chlorine ≥ 70.0% wt.
• Factory-sealed white round HDPE drums of 50 Kg Net (Gross: 53.5 Kg), certified to UN packaging standards with a fresh 24-month shelf life.
• Full regulatory and commercial documentation: Batch-specific Certificate of Analysis (COA) for every dispatched lot, Material Safety Data Sheet (MSDS), and official VAT invoices.
• Substantial central inventory in Ho Chi Minh City offering competitive wholesale pricing for commercial farms and prompt nationwide delivery.

Frequently Asked Questions (FAQ)

1. What are the operational advantages of the 50kg drum packaging format?

The 50kg Net HDPE drum is an industrial heavy-duty standard equipped with an airtight locking ring compliant with UN packaging codes. The 50kg net weight facilitates straightforward batch calculations for large commercial aquatic reservoirs while minimizing packaging costs per ton.

2. Why must aerators run for 3 to 5 days after applying chlorine to shrimp ponds?

Continuous aeration ensures thorough dispersion of hypochlorous acid across all water strata while speeding up the volatilization of residual free chlorine. Always verify that residual chlorine has dropped to 0.0 ppm via test kits before stocking post-larvae to prevent toxicity.

3. What advantages does granular calcium hypochlorite offer over fine bleaching powders?

With over 90% of granules sized between 12 and 50 mesh, the product sinks rapidly to the bottom and dissolves steadily. It minimizes airborne chemical dust that irritates operators' eyes and respiratory tracts, while preventing surface chemical loss.

4. Does THP Chemical provide official batch COAs for wholesale shipments?

Yes. THP Chemical provides an original factory Certificate of Analysis (COA) corresponding to each production lot, alongside the 16-section MSDS and legal VAT invoices for internal QA/QC and regulatory audits.