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Dichlorine Oxide

    • Product Name Dichlorine Oxide
    • Alias Chlorine dioxide
    • Einecs 215-615-7
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
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    Specifications

    HS Code

    697918

    Chemical Name Dichlorine Oxide
    Chemical Formula Cl2O
    Molar Mass 86.90 g/mol
    Appearance yellowish-brown gas
    Density 2.13 g/L (gas, at 0°C, 1 atm)
    Melting Point -120.6°C
    Boiling Point 3°C
    Solubility In Water reacts and hydrolyzes
    Odor pungent, chlorine-like
    Cas Number 10020-83-0

    As an accredited Dichlorine Oxide factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Dichlorine Oxide is packaged in a 500 mL amber glass bottle, sealed with a PTFE-lined cap, and labeled hazardous.
    Shipping Dichlorine oxide (Cl₂O) must be shipped as a compressed, liquefied gas in specialized, corrosion-resistant cylinders. It should be transported under refrigeration and clearly labeled as toxic and oxidizing. Shipping complies with international hazardous materials regulations, with strict handling procedures to prevent leaks, exposure, and violent reactions with organic compounds.
    Storage Dichlorine oxide should be stored in tightly sealed containers made of materials resistant to oxidation, such as glass or certain plastics, and kept in a cool, dry, and well-ventilated area away from direct sunlight. It must be isolated from combustible substances, organic materials, and reducing agents to prevent hazardous reactions, and should be handled using appropriate chemical safety procedures.
    Application of Dichlorine Oxide

    Applications of Dichlorine Oxide in Industrial Manufacturing

    Dichlorine oxide serves key roles in tightly regulated industrial sectors. As the direct manufacturer, we ensure quality for formulation, plant integration, and compliance in each specialized downstream process.

    1. Municipal Potable Water Disinfection

    Municipal water treatment plants adopt dichlorine oxide as a selective oxidant and disinfectant for pathogen removal. Incorporated at pre- and post-treatment stages, it deactivates bacteria, protozoa, and viruses effectively while minimizing formation of trihalomethanes and chlorinated by-products. Operators must calibrate dosage to local water parameters and target contaminant profiles in continuous dosing systems equipped with real-time monitoring for residual levels and by-product control.

    Industry compliance standards

    • US EPA National Primary Drinking Water Regulations (40 CFR Part 141)
    • WHO Guidelines for Drinking Water Quality
    • EN 12671: Chemicals Used for Treatment of Water Intended for Human Consumption
    • ANSI/AWWA B300-21 Standard

    Typical usage ratio

    • 0.2 – 2.0 mg/L depending on raw water microbiological load, organic content, and residual targets
    • Operators adjust feed rates seasonally and according to real-time water quality data

    Downstream process integration

    • Dosing at raw water inlet or pre-filtration step
    • Contact basins designed for required holding time and mixing
    • Automated controls regulate feed based on measured residual
    • Continuous monitoring for by-product formation and regulatory compliance

    Final product types

    • Treated municipal potable water for residential and commercial networks
    • Bottled drinking water in central bottling plants
    • Feedwater for beverage processing and food manufacturing
    • Pre-treated water for pharmaceutical and electronics applications

    2. Industrial Cooling Water Microbial Control

    Recirculating cooling towers and heat exchanger systems in power generation, petrochemical, and manufacturing facilities utilize dichlorine oxide to suppress Legionella, Pseudomonas, and biofilm-forming bacteria. Application ensures compliance with occupational safety and operational reliability standards, minimizing corrosion and fouling events. Dosing is managed by feed-and-bleed proportional control, considering system volume, make-up water characteristics, and operational cycles.

    Industry compliance standards

    • ASHRAE Standard 188 (Legionellosis: Risk Management for Building Water Systems)
    • ISO 5667-6:2020 (Water quality—Sampling—Part 6: Guidance on sampling of rivers and streams)
    • OSHA Technical Manual Section III: Chapter 7 (Legionnaires’ Disease)
    • EN 13623: Chemical Disinfectants and Antiseptics—Quantitative Suspension Test

    Typical usage ratio

    • 0.5 – 5.0 mg/L based on biofilm fouling rates and heat exchanger load
    • Higher end for shock dosing after system upsets; lower end for continuous use

    Downstream process integration

    • Direct injection to central circulating water lines
    • Onsite generation units or tank dosing systems
    • Integrated residual monitoring with auto-shutdown or dilution safeguards
    • Sampling points at hot spots and return lines for validation

    Final product types

    • Treated process cooling water for industrial plant operation
    • Recycled water supplies for heat exchange processes
    • Water reused in closed-loop HVAC and industrial air conditioning systems
    • Make-up and blowdown water meeting microbiological control criteria

    3. Pulp and Paper Processing (Delignification and Bleaching)

    In pulp mills, dichlorine oxide participates as a chlorine-based oxidant for delignification and pre-bleaching in elemental chlorine-free (ECF) processing. Its application targets improved pulp brightness and environmental compliance with dioxin and AOX discharge limitations. Mill engineers tailor dosage and timing to wood species, kappa number, and desired whiteness index, ensuring regulatory and market-driven sustainability requirements are met at scale.

    Industry compliance standards

    • ISO 14001 Environmental Management Systems
    • BAT reference documents for the Pulp and Paper Industry (EU BREF)
    • US EPA Cluster Rule for Pulp, Paper, and Paperboard Mills
    • EN 643 European List of Standard Grades of Recovered Paper

    Typical usage ratio

    • 5 – 25 kg/t of dry pulp, adjusted for incoming lignin content and process targets
    • Dosage optimized to minimize AOX (Adsorbable Organic Halides) and achieve set ISO brightness

    Downstream process integration

    • Dosed at delignification or primary bleach stage following kraft digestion
    • Integrated with chemical recovery and wastewater pre-treatment
    • Process control via kappa number and colorimetric analysis
    • Closed-loop feedback for dosage optimization and effluent control

    Final product types

    • High-brightness bleached kraft pulp
    • Printing and writing paper base stocks
    • Packaging paper with reduced effluent AOX signature
    • Label and tissue paper grades meeting ECF standards

    4. Food Processing Plant Sanitation

    Dichlorine oxide is approved for CIP (clean-in-place) and surface sanitization in food manufacturing, meat packing, and beverage bottling facilities. Its rapid action controls E. coli, Salmonella, and Listeria on equipment and contact surfaces, with fast breakdown to minimize food contact chemical residues. Dosage depends on surface loading and risk assessment, and sanitation managers document each application for traceability under audit programs.

    Industry compliance standards

    • US FDA CFR Title 21 §173.300 (Secondary Direct Food Additives Permitted in Food for Human Consumption)
    • EU Regulation (EC) No 852/2004 on Hygiene of Foodstuffs
    • Codex Alimentarius CAC/RCP 1-1969 (General Principles of Food Hygiene)—CIP procedures
    • GFSI benchmarking requirements (SQF, BRCGS, IFS)

    Typical usage ratio

    • 20 – 200 ppm (0.02–0.2 g/L) in CIP solutions, depending on cleaning cycle, soil loading, and target organisms
    • Lower range for routine use; upper for corrective action following contamination events

    Downstream process integration

    • Injection into CIP lines and spraying on direct contact surfaces
    • Timed recirculation cycles followed by potable water rinse
    • Monitoring with onsite oxidant test kits and verification swabbing
    • Sanitation logs maintained for batch and equipment traceability

    Final product types

    • Packaged fresh produce
    • Chilled and ready-to-eat meat and poultry products
    • Bottled juices and soft drinks
    • Brewery and dairy products processed on sanitized lines

    5. Electronic and Semiconductor Ultrapure Water Systems

    Semiconductor manufacturing requires ultrapure water with strict control over microbial and ionic contaminants. Dichlorine oxide provides validated microbial reduction in RO and DI water systems without residual halogen buildup. Process engineers dose controlled microgram-per-liter quantities, balancing oxidative cleaning with low extractable residue requirements, to meet process node yield demands and international device standards.

    Industry compliance standards

    • SEMI F63: Guide for Ultrapure Water Used in Semiconductor Processing
    • ASTM D5127: Standard Guide for Ultra-Pure Water Used in the Electronics and Semiconductor Industries
    • IEST-STD-CC1246E: Product Cleanliness Levels
    • ISO 14001 for environmental impact of effluents from water treatment plants

    Typical usage ratio

    • 0.01 – 0.10 mg/L (10-100 μg/L) depending on system design and contaminant baseline
    • Dosage adjusted according to microbial plate counts and on-stream TOC monitoring

    Downstream process integration

    • Dosed at pre-RO entry point and DI loop recirculation lines
    • Integration with carbon filtration and as part of hydrogen peroxide quench cycles
    • Continuous monitoring for free chlorine and total oxidant levels
    • Online validation with microbial sampling before critical rinses

    Final product types

    • Ultrapure wafer rinsing water
    • Photoresist developer dilution water
    • Wet etching chemical make-up solutions
    • Electronics-grade finished semiconductor devices

    6. Textile Wastewater Color Removal and Odor Control

    Textile dyeing and finishing plants employ dichlorine oxide during secondary treatment to break down azo, sulfur, and reactive dye chromophores, meeting discharge color limits while controlling biological odor generation. Operators target dosage to actual dye load, influent COD, and effluent permit requirements, ensuring compliance with local environmental discharge standards and supporting water reuse schemes.

    Industry compliance standards

    • OECD Guideline 303A: Simulation Test—Aerobic Sewage Treatment
    • ISO 14001: Environmental Management Systems
    • China GB8978-1996: Integrated Wastewater Discharge Standard
    • EU Directive 2010/75/EU (Industrial Emissions Directive) for textile sector

    Typical usage ratio

    • 10 – 100 mg/L, depending on color and COD/chemical oxygen demand reduction targets
    • Dosing determined through jar testing and ongoing effluent colorimetry data

    Downstream process integration

    • Dosed into equalization basins or post-biological treatment tanks
    • Automatic control for real-time color and odor sensor inputs
    • System tie-in for combined treatment with pH adjustment and flocculant addition
    • Effluent monitoring protocols for discharge compliance and traceability

    Final product types

    • Clear and color-compliant industrial wastewater for external discharge
    • Treated water for internal plant recycling
    • Process water for non-potable uses (boiler feed, equipment washing)
    • Supporting compliance for certified green textile lines
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    Certification & Compliance
    More Introduction

    Introducing Dichlorine Oxide: Practical Uses and Insights from Our Factory Floor

    A Chemist's Perspective on Dichlorine Oxide

    Dichlorine oxide, commonly referenced by its chemical symbol Cl2O, has played a dependable role in chemical manufacturing and water treatment for decades. From my years at the synthesis reactors, the unique properties of this compound stand out every production day. Our team works with the monomeric form, handled at high purity, which is delivered to match trusted, consistent specifications—typically achieving a purity upwards of 99%, verified batch-by-batch using on-site gas chromatography.

    In practice, dichlorine oxide distinguishes itself from other oxidizers. Workers on the line notice its selective reactivity: it oxidizes targeted pollutants in water while leaving behind less unwanted byproducts than some traditional alternatives. This matters downstream, since our plant crews see fewer corrosion issues on stainless tanks and less downtime for cleaning. Cl2O’s oxidizing potential rates higher than hypochlorite but avoids the uncontrolled aggression of chlorine gas, giving operators a compound with more predictable performance in both laboratory and field conditions.

    Specifications from Real-World Production

    Our factory supplies dichlorine oxide with moisture content, acidity, and residual chlorine levels tightly managed. Crews regularly run routine checks for trace contaminants, since excess water or free chlorine can spark unexpected reactivity during shipment or storage. Our product ships as a gas, dissolved in cold water, or generated onsite through controlled reaction of chlorine and mercuric oxide in a specially sealed generator—a method proven safe and efficient under GMP-validated protocols. Each cylinder or solution batch receives rigorous documentation, and traceability remains a top priority for our compliance teams.

    Compared to bulk chlorine or sodium hypochlorite, dichlorine oxide gives end-users a lower odor profile and reduced formation of trihalomethanes during water treatment—which became obvious for us after repeated comparative field tests at industrial and municipal plants. This factor keeps regulatory officers and plant engineers returning to our product, since the regulatory burden for THMs continues to tighten globally.

    Hands-On Uses in Water and Chemical Processing

    Many of our longtime buyers run municipal water plants, cooling towers, or food wash stations. In these systems, pure Cl2O acts as a strong but controllable oxidant. Our plant operators observe faster breakdown of stubborn biofilms and organic material without introducing the strong chlorine residual taste that can trouble downstream users. This is a direct benefit, not just technical theory: after integrating dichlorine oxide dosing, our clients record a noticeable drop in customer complaint calls about tap water flavors.

    Food processors use our product to sanitize produce, equipment, and surfaces. Compared to sodium hypochlorite, which leaves behind visible residues and strong odors, dichlorine oxide performs sanitary tasks with gentler sensory impact and reduces chemical handling risks for line workers. Field audits at customer sites have shown improved worker satisfaction when switching to dichlorine oxide, verified by lower incident reports involving respiratory irritation or accidental splashing.

    Comparing Dichlorine Oxide with Other Products

    Chlorine-based treatment products fill a huge range of roles, but from a manufacturer’s perspective, their differences become clear at both the molecular and operational levels. Chlorine gas remains the industry benchmark for rapid, broad-spectrum disinfection, yet it’s harder to control and creates a caustic work environment. Our crew recalls cases of valve failure or storage leaks with chlorine gas, where emergency responses strained both safety resources and productivity.

    By contrast, dichlorine oxide brings a sweet spot in terms of stability and targeting. Due to its molecular size and electronegativity, it selectively oxidizes sulfides, phenols, and persistent organics. Our technical meetings often consider its capacity to reduce bromate and chlorate formation compared to traditional hypochlorite-based protocols. For municipal systems facing tightening discharge guidelines, this aspect has become more valuable every year.

    Sodium hypochlorite, popular for its ready availability, ends up generating more chlorinated organic byproducts. In our comparison trials, treated water from hypochlorite lines often exceeded 80 micrograms per liter of trihalomethanes, while dichlorine oxide lines routinely stayed under 30. That differential goes right to the spreadsheets of compliance officers, whose feedback we collect at every customer technical visit.

    Safety and Handling Insights from the Plant

    Dichlorine oxide does require respect. Plant operators never take safety for granted. It’s an irritant to the respiratory tract, skin, and eyes, just like its more dangerous cousins. Our lab technicians always apply the same level of personal protective equipment as with chlorine gas, and we schedule regular training in leak prevention and emergency ventilation. As a manufacturer, we engineer our generators and containment systems to eliminate worker exposure—whether the material is being generated onsite or shipped in solution. Experience has shown most incidents trace back to onsite reactivity from trace contaminants, which reinforces our rigorous quality controls at every production stage.

    Our on-call engineers frequently help customers retrofit or maintain their own dichlorine oxide generators to ensure steady, loss-free dosing. Improper dilution or uncontrolled reaction speeds can trigger rapid pressure rises, so our technical support emphasizes stepwise preparation and real-time monitoring of pressure and temperature. Through years of remote and in-person visits, our staff have helped dozens of utility engineers shift from legacy chlorination units to safer, more efficient dichlorine oxide equipment.

    Environmental and Regulatory Considerations

    Modern water regulations exert tight controls over chlorinated byproducts. From the EU’s Drinking Water Directive to U.S. EPA cryptosporidium mandates, water system operators seek predictable, low-risk performance. Dichlorine oxide holds value here. Since the 1990s, utility trials and third-party audits have demonstrated that Cl2O dosing drastically reduces levels of chloroform, dichloroacetic acid, and related byproducts in treated water. Our process chemists sometimes visit city councils during pilot programs to present third-party lab results, and the difference remains clear: less downstream re-treatment, smoother regulatory audits, and fewer consumer health complaints.

    As discharge guidelines keep tightening, food processors and beverage plants have come to us looking for solutions that preserve both safety and product quality. These processors must guarantee that every bottle or batch stays within narrow chemical limits. Dichlorine oxide simplifies their recordkeeping since its byproducts are easier to predict and control, even at large volumes. Our technical sales engineers support clients by collaborating directly on custom dosing schedules and quality assurance setups tailored to production flow rates and local water chemistries.

    Manufacturing Realities: Production, Logistics, and Customer Support

    Making and delivering dichlorine oxide involves more than chemistry. Our plant teams run round-the-clock monitoring and maintenance on reactors, containment vessels, and shipping cylinders. The turnover on the production floor means fresh material leaves the site within hours of synthesis, since Cl2O degrades in storage. Keeping the logistics fleet synchronized with the reactor chemists ensures that customers get the freshest, purest product possible, whether for direct-use solution or gas-phase transfer to an onsite dosing installation.

    Along with high-purity product, our laboratory techs run regular inter-laboratory comparisons to keep our analytical benchmarks sharp. Since regulatory agencies keep raising the bar for trace-level impurity measurements, our staff continuously retrain and upgrade equipment. We routinely share anonymized, third-party-certified QA data with customers and regulators—a practice that builds trust and transparency throughout our supply chain.

    Customers running water treatment plants appreciate the direct support we provide. Our field engineers have visited dozens of municipal and industrial clients over the past year alone, helping integrate Cl2O into existing dosing systems or designing new solution storage and injection layouts. We share know-how gained from our own facility—such as minimizing dead space to prevent vapor build-up, or optimizing inline mixing to maximize contact with organic and microbial load.

    Product Differentiation Rooted in Experience

    Direct feedback from utilities and industrial users guides our continuous improvement. After listening to operator experiences and reviewing operational records, the reality becomes simple: dichlorine oxide wins loyalty by delivering on-site performance gains. One beverage processor slashed their operational downtime after switching from bulk sodium hypochlorite to our controlled Cl2O solution. Their supervisors cited less scale buildup, lower cleaning chemical use, and a marked reduction in customer complaints about off-flavors—all validated against customer satisfaction surveys over multiple quarters.

    Another municipal system converted only a single treatment lane to dichlorine oxide, reporting improved log reductions in microbial counts compared to parallel lines using traditional chlorination. The water utility chief pointed out fewer chemical odor complaints and less officer time spent tracking byproduct exceedances. We’ve answered calls on weekends to troubleshoot real-world dosing challenges and have worked beside countless system mechanics to adapt generator equipment at any hour necessary.

    Why Plant Experience Matters

    Decades inside chemical production plants teach lessons that don’t appear on technical datasheets. A successful dichlorine oxide application takes more than just specifications and certificates. It calls for collaboration—fine-tuning dosing, monitoring plant water quality, and troubleshooting the mechanical realities of treatment hardware under real operating pressures. From every reactor charge to every final shipment, our crew brings lessons from the field directly into process refinements and customer support. This commitment keeps production safe, consistent, and aligned with customer goals.

    Cl2O occupies a unique niche. It doesn’t seek to be all things to all applications. Instead, it solves very specific challenges where high selectivity and low byproduct formation matter. In water treatment, this means fewer regulatory headaches and happier downstream users. In food processing, it translates into fewer complaints about residual tastes or odors, with the reassurance of a strong oxidizing profile. In chemical synthesis, it enables reactions that fine-tune products without introducing excess contaminants, supported by robust traceability from our plant team.

    Continuous Improvements and Future Directions

    Every manufacturing cycle brings new opportunities for improvement. Our technical team constantly reviews process data, customer feedback, and regulatory trends to enhance both safety and efficiency. Upgrades to our generator units, better real-time monitoring, tighter transportation protocols—all reflect our commitment to high standards without compromise. As global standards continue evolving, we aim to remain a trusted partner, keeping our products, delivery, and technical support at the leading edge.

    Through every day’s work, our team understands that trust grows from performance and reliability. Dichlorine oxide continues to meet the needs of water utilities and industrial users demanding predictable chemistry with a clear safety and performance record. Lessons learned from decades on the production line feed directly into every batch and every customer partnership, ensuring that our product not only meets the written specifications but delivers measurable value at the point of use.