As modern industries scale up and large-capacity agricultural operations expand, the demand for bulk, commercial-grade water treatment and biosecurity solutions has reached unprecedented levels. Whether managing a municipal wastewater facility, a massive aquaculture farm, or a heavy-duty food processing plant, operators require a dependable and highly concentrated disinfectant. Addressing this exact need, Viet Tri Chemical Joint Stock Company leverages its 65-year legacy of manufacturing excellence to introduce the heavy-duty Vi Chlorine product line. Specially packaged in substantial 45kg drums, this formulation represents a major leap forward in Vietnam's chemical production capabilities, offering a highly cost-effective and powerful sanitizing weapon for large-scale industrial and commercial applications globally.

1. Product Information

Widely recognized in the global chemical market as Premium Bleaching Powder, Vi-Chlorine acts as a formidable solid-state disinfectant. Powered by a high concentration of Calcium hypochlorite, this commercial-grade substance unleashes aggressive oxidation to rapidly neutralize pathogens, bacteria, fungal spores, and invasive algae across various demanding environments.

• Commercial Identifier: Vi-CHLORiNE
• Global Designation: Calcium hypochlorite / Bleaching Powder
• Core Active Ingredient: Calcium hypochlorite (the driving force behind its supreme sanitizing properties).
• Molecular Formula: Ca(ClO)₂
• Packaging Specifications: The 45kg/Pack heavy-duty plastic drum. Designed specifically for macro-operations, industrial plants, and mega-farms, this robust packaging minimizes the frequency of drum replacements. The high-density polymer casing guarantees ultimate protection against humidity and external contamination during long-haul transit and extended warehouse storage.
• Physical Appearance: Available in granular or finely powdered solid forms, displaying a distinct ivory or milky-white hue.
• Sensory Profile: Emits a sharp, highly pungent chlorine aroma immediately upon opening, serving as a distinct indicator of its potent active halogens.
• Origin & Manufacturer: Proudly synthesized by Viet Tri Chemical Joint Stock Company in Phu Tho, Vietnam—a pioneering force in the nation's inorganic chemical sector.

Positioned as a top-tier domestic export product, the 45kg Vi-Chlorine variant undergoes relentless quality assurance protocols. From raw material sourcing to the fully automated, closed-circuit synthesis and bulk packaging, every phase is engineered to yield a highly stable active chlorine profile with negligible impurities.

2. Outstanding Characteristics of Chlorine

While the market is flooded with numerous sanitizing compounds, Vi-Chlorine consistently outshines conventional alternatives. Its dominance is driven by a unique set of physicochemical attributes that guarantee superior operational efficiency:

Exceptional Solubility Profile: A defining hallmark of this product is its rapid integration into aquatic environments. Engineered with optimal porosity and uniform grain sizing, Vi-Chlorine dissolves swiftly and comprehensively. This clear dissolution process leaves virtually no inorganic sludge or suspended solids behind, preventing costly blockages in industrial filtration networks and piping infrastructure.

Potent Antimicrobial Action: Upon contact with water, the chemical structure aggressively dissociates, reacting with H₂O to yield two devastatingly effective oxidizers: Hypochlorous acid (HClO) and the hypochlorite ion (OCl⁻). The reaction unfolds as follows:

Ca(ClO)₂ + 2H₂O → Ca(OH)₂ + 2HClO

Both byproducts deliver instant microbicidal trauma. They achieve this by rapidly piercing the protective cell walls and membranes of target pathogens. Once internal access is gained, these oxidizers corrupt the microbial DNA and RNA, completely disabling cellular metabolism and preventing any future replication or mutation.

The Crucial Role of pH Balancing: For plant operators, understanding the correlation between pH levels and sanitizing efficacy is paramount. While both HClO and OCl⁻ kill bacteria, HClO is exponentially more aggressive due to its neutral electrical charge, which allows effortless penetration of cellular defenses. In acidic to neutral waters, HClO dominates, unlocking maximum lethality. Conversely, highly alkaline waters cause OCl⁻ to predominate, slightly dampening the biocidal shock. Therefore, stabilizing the environmental pH between 6.5 and 7.5 prior to dosing is an essential strategy for minimizing chemical consumption and maximizing output.

Premium Purity and Low-Dust Formulation: Substandard bleaching powders often contain excessive fine dust, leading to respiratory hazards and material wastage. Viet Tri Chemical combats this by employing advanced mechanical sieving, resulting in highly uniform granules. This low-dust matrix protects the respiratory tracts of the workforce and ensures highly accurate volumetric dosing.

3. Quality Indicator Requirements for Chlorine

To satisfy the uncompromising demands of export-grade aquaculture and heavy industry, the 45kg Vi-Chlorine drum must pass strict analytical testing. The ensuing table highlights the rigorous internal and national benchmarks this compound strictly adheres to:

Comprehensive Breakdown of Specifications:

• ≥ 70% Active Halogen Yield: Representing the pinnacle of commercial-grade disinfectants, a 70% yield means operators can deploy drastically lower physical volumes of the chemical to achieve massive sterilization sweeps. When contrasted with standard 10% liquid sodium hypochlorite, this solid formulation slashes logistics overhead, storage footprint, and manual labor.
• Rigid Heavy Metal Suppression: Arsenic and Lead are notoriously toxic elements that accumulate within aquatic ecosystems and bio-magnify up the food chain. By restricting Arsenic to ≤ 5 mg/kg and Lead to ≤ 30 mg/kg, Vi-Chlorine ensures absolute compliance with international food safety mandates. This is a critical prerequisite for commercial hatcheries and processing plants exporting to hyper-strict zones like the European Union, Japan, and North America.
• Calculated Moisture Balance (4% - 10%): Retaining a very specific trace amount of water within the granular matrix prevents the rapid auto-decomposition of the active ingredients, thereby guaranteeing a prolonged, multi-year shelf life under proper warehouse conditions.

4. Applications of Chlorine

Due to its unyielding oxidative power, Calcium Hypochlorite is an incredibly versatile utility chemical. Its footprint spans across multiple massive economic sectors, prominently featuring in the following 9 domains:

Application of Chlorine in Aquaculture

In the high-stakes arena of commercial shrimp and fish farming, pathogens such as Vibrio parahaemolyticus and the White Spot Syndrome Virus (WSSV) pose catastrophic financial threats. Chlorine serves as the ultimate biological shield.

During the critical pond preparation phase, large-scale farmers utilize Vi-Chlorine to purge toxic algal blooms, eradicate wild crustaceans (which act as disease vectors), and cleanse the benthic zones of residual pathogens from previous harvests, creating a flawless, sterile nursery for incoming post-larvae.

Industrial Dosing Guidelines:

• Benthic Cleansing (Pond Bottoms): 50 – 100 ppm to aggressively burn out pathogens entrenched in sludge and liner biofilms.
• Reservoir Water Sterilization: 20 – 30 ppm. Post-application, extreme mechanical aeration and prolonged UV exposure (sunlight) for 3-5 days are mandatory to dissipate toxic residual gases before transferring water to the main culture ponds.
• Mid-Cycle Intervention: Deployed in micro-doses. Short-term baths of 1 - 3 ppm (for 10-15 minutes) tackle external bacterial fouling, while 0.1 - 0.2 ppm treats parasitic infestations.
• Algal Bloom Suppression: Routine micro-dosing of 0.05 - 0.1 ppm stabilizes bacterial loads and prevents severe eutrophication or "water blooming".

Cautionary Advice: Never broadcast agricultural lime immediately prior to chlorination. The resulting alkaline spike (pH > 8.5) will cripple the chemical's ability to form hypochlorous acid. For farm owners looking to capitalize on upcoming macro-economic shifts, we highly recommend reading: Global Shrimp Market Outlook 2025: A Golden Opportunity for Asia.

Application in Industrial and Domestic Wastewater Treatment

Before industrial effluents and municipal sewage can be legally discharged into rivers or oceans, they must satisfy stringent environmental regulations. Vi-Chlorine is injected into the terminal contact chambers of treatment plants. Following mechanical screening and biological digestion, this chemical shock irrevocably terminates surviving fecal coliforms, enteric viruses, and parasitic cysts, while stripping the effluent of its noxious odors and unnatural coloration.

Application in Swimming Pool Water Treatment

Olympic-sized pools, luxury resorts, and public aquatic centers rely heavily on Calcium Hypochlorite to maintain pristine, azure waters. Bather loads introduce immense organic contaminants (sweat, oils, cosmetics) which feed rapid algal and bacterial blooms.

Routine granular dosing, combined with overnight "super-chlorination" (shocking), oxidizes and incinerates accumulated chloramines (the compounds responsible for strong odors and red eyes). Maintaining a free chlorine residual of 1.0 - 3.0 ppm creates a constant aseptic barrier, protecting swimmers' health and preventing slippery moss accumulation on pool tiles.

Application in Water Supply Disinfection

The provision of safe municipal tap water is a cornerstone of public health infrastructure. Mega water purification plants utilize Chlorine as the most robust, time-tested strategy to sanitize surface and groundwater post-filtration.

Its distinct advantage over Ozone or UV systems is the generation of a "protective residual". Plant operators calibrate dosages to ensure a residual presence of 0.3 to 0.5 ppm at the consumer's tap. This lingering barrier prevents secondary bacterial contamination as the water travels through miles of aging subterranean municipal piping.

Application in Disinfecting Livestock and Poultry Farms, and Farming Equipment

In mega-farming complexes housing thousands of swine or poultry, establishing a biosecurity fortress is the only defense against highly contagious outbreaks like African Swine Fever (ASF) or Avian Influenza.

A 0.5% - 1% dilution of Vi-Chlorine is power-sprayed across transit corridors, transport truck undercarriages, slaughterhouse floors, and waste holding zones. Furthermore, submerging feeders, drinkers, and veterinary instruments in a 100 - 200 ppm solution for 30 minutes severs the chain of cross-contamination, ensuring flock and herd vitality.

Application in Sanitation and Disinfection of Food Processing Factories

Beverage bottling plants, commercial canneries, and seafood packing facilities operate under merciless aseptic mandates (ISO 22000, HACCP). The slightest trace of Listeria or Salmonella on stainless steel belts can trigger catastrophic global recalls.

Integrated seamlessly into CIP (Clean-In-Place) protocols, a 0.5% - 1% Chlorine wash is blasted through pipelines, slicers, and drainage grids. Its broad-spectrum lethality dissolves hardened bacterial biofilms that lesser detergents fail to remove.

Application in Floor and Yard Sanitation, Algae, Moss, and Mold Removal

Tropical and highly humid climates encourage aggressive moss and black mold infestations on concrete yards, loading docks, and exterior factory walls, creating severe slip-and-fall hazards for personnel.

Spraying a hyper-concentrated 5% - 10% Chlorine solution over these surfaces is a highly economical remediation tactic. Within 30 minutes, the oxidative fire chemically scorches the cellular structure of the algae, rendering it dead and yellowed. A final high-pressure water sweep leaves the masonry fully restored and sterilized.

Application in Disinfecting Fresh Fruits, Fish, and Seafood

Post-harvest longevity dictates profitability. Freshly caught trawler seafood and harvested agricultural produce harbor destructive rot-causing microbes and environmental fungi.

Processing facilities route these raw goods through flume wash tanks containing a calibrated 50-200 ppm (approx. 0.5%) Chlorine solution. This superficial bath annihilates spoilage organisms without degrading the cellular integrity, firmness, or taste of the food, drastically extending transport shelf-life and ensuring compliance with international quarantine checks.

Application in the Paper Industry

To transform raw, brown cellulose fibers into brilliant white printing paper, the obscuring lignin must be chemically stripped. Chlorine remains a foundational bleaching agent in heavy pulp mills. Its oxidative properties fracture the molecular bonds of chromophores, purifying the pulp.

Additionally, as mills implement closed-loop water recycling, Chlorine is dripped into the circuit to destroy slime-forming bacteria. Unchecked, this slime binds to milling meshes, causing severe machine downtime and dark blemishes on the final paper rolls.

5. Guidelines for Safe Use of Chlorine Chemicals

Because it is a highly concentrated, corrosive oxidizing agent, strict adherence to industrial safety protocols is non-negotiable when handling Vi-Chlorine to prevent severe occupational hazards:

• Mandatory Personal Protective Equipment (PPE): Personnel tasked with scooping or mixing the 45kg drums must wear heavy-duty rubber gauntlets, chemical-resistant aprons, and rubber boots. Full-seal safety goggles and industrial respirators equipped with acid-gas cartridges are vital to block the inhalation of corrosive chlorine fumes.
• The Golden Rule of Mixing: Always pour the dry chemical SLOWLY into a large reservoir of water. NEVER dump water directly onto a pile of Chlorine powder. Reversing this process triggers a violent exothermic flash, launching boiling, corrosive slurry into the operator's face.
• Emergency Exposure Protocols:
  • Dermal Contact: Strip contaminated garments instantly and deluge the affected flesh under an emergency safety shower for no less than 15 minutes.
  • Ocular Contact: Pry eyelids open and flush the eyes continuously at an eyewash station for 20 minutes. Seek emergency ophthalmological care immediately. Never rub the eyes.
  • Inhalation Hazard: Evacuate the casualty to an upwind area with fresh air. Keep them calm and elevated, and summon emergency medical responders at once.
• Strict Segregation: Under no circumstances should Chlorine be mixed with secondary water clarifiers. Blending it with any acidic solutions (like Sulfuric or Hydrochloric acid) will instantly provoke the release of dense, yellow-green elemental Chlorine gas (Cl2)—a highly lethal respiratory toxin.

6. Storage and Transportation of Chlorine

To preserve its chemical potency over years, logistical and warehousing operations must rigidly enforce the following environmental controls:

• Container Integrity: The 45kg/Pack utilizes reinforced PE/PP polymers resistant to oxidation. Once the tamper-evident seal is broken, the inner moisture-barrier liner must be twisted and tied hermetically after every single use to block ambient humidity from degrading the powder.
• Warehouse Climate: Drums must rest on elevated pallets, maintaining a 20cm clearance from walls and floors. The storage depot requires high-volume ventilation, absolute dryness, and a controlled ambient temperature below 35°C. Outdoor storage is strictly prohibited, as direct ultraviolet (UV) solar radiation triggers rapid photochemical breakdown, vaporizing the active chlorine content.
• Chemical Quarantine Zones: Vi-Chlorine demands isolated storage. It must never share spatial proximity with organic solvents, paints, petroleum-based fuels, lubricants, or any classification of acids and inorganic reducers. The perimeter must display highly visible GHS hazard placards.
• Equipment Vulnerability: Prolonged exposure of raw powder or vapor to unpainted, non-galvanized metallic structures will induce rampant oxidation, swiftly rusting and compromising structural integrity.

7. VIETCHEM EXPORT - The Trusted Provider of Commercial-Grade Chlorine

While the market witnesses fierce rivalry between imported brands and local formulations, the Vi-Chlorine lineage—synthesized by Viet Tri Chemical and exclusively distributed globally by VIETCHEM EXPORT—has emerged as the definitive industrial standard. It stands as a testament to Vietnam’s burgeoning supremacy in heavy chemical engineering.

Recent field deployments spearheaded by Viet Tri’s agronomy experts across the sprawling, high-tech aquaculture hubs of the Mekong Delta yielded phenomenal data. When pitched in head-to-head field trials against premium imports like India's Aquafit, Vi-Chlorine matched, and in specific solubility metrics, outright surpassed its foreign rival. The resulting water stability and post-larval survival rates were virtually indistinguishable from the highest-priced international competitors.

Scaling up to the 45kg Vi-Chlorine variant unlocks immense operational advantages for commercial buyers:

• Massive Cost Abatement: Despite delivering elite, export-grade performance, Vi-Chlorine is aggressively priced 5% to 10% below comparable foreign brands. For mega-farms consuming tons of chemical monthly, this translates to massive fiscal savings.
• Unbreakable Supply Chains: Manufactured natively, buyers are entirely shielded from trans-oceanic shipping delays, volatile port tariffs, and currency exchange spikes. Clients are guaranteed uninterrupted access to factory-fresh batches.
• Zero Tolerance for Counterfeits: Procured directly via Vietchem’s official channels, every 45kg drum arrives with multi-tiered security seals, ensuring 100% unadulterated potency.
• Elite Technical Counsel: Vietchem provides more than just raw materials; we provide on-call engineering support. Whether calibrating dosing pumps or fighting sudden viral outbreaks, our experts are on standby. Don't just take our word for it—discover the real-world impact by checking out our localized case study: What Do Local Farmers Say About Vi-CHLORiNE?.