Chlorine Dioxide – History & Characteristics
Powerful. Proven. Trusted.
Discovered in 1811 by Sir Humphry Davy, Chlorine Dioxide (ClO₂) has evolved into one of the most trusted and effective oxidation technologies used worldwide today.
Recognized for its exceptional performance, chlorine dioxide is a highly powerful, selective, and versatile oxidizing agent used across water treatment, agriculture, livestock, food processing, healthcare, and industrial applications.
Why Chlorine Dioxide?
Unlike traditional chlorine-based chemicals, chlorine dioxide works through selective oxidation, targeting harmful microorganisms, biofilm, organic contaminants, and odor-causing compounds — without producing many of the undesirable chlorinated by-products associated with chlorine.
Key Benefits
- Broad-spectrum biocidal performance
- Highly effective at low concentrations
- Powerful deodorizing action
- Superior bleaching capability
- Reduced harmful by-product formation
- Effective across a wide pH range
Unique Chemical Advantage
Chlorine dioxide is a small but powerful molecule composed of one chlorine atom and two oxygen atoms. At room temperature, it exists as a yellowish-green gas and dissolves readily in water for safe and controlled application.
Because chlorine dioxide is unstable when compressed, it is safely generated at the point of use from precursor components. This ensures maximum effectiveness, freshness, and safety at the time of application.
Globally Accepted & Industry Approved
Chlorine dioxide technology is widely recognized and approved for various applications by leading international regulatory bodies, including:
- USDA
- FDA
- EPA
- WHO
- Other global regulatory authorities
(Approvals subject to application guidelines and prescribed limits.)
The Smart Oxidation Choice
With over two centuries of scientific validation and modern innovation, chlorine dioxide remains the preferred solution for industries that demand:
- Reliable disinfection
- High performance
- Operational efficiency
- Regulatory compliance
Efficient, Effective & Economical. Chlorine dioxide delivers advanced oxidation performance where it matters most.
Chemical & Physical Properties
- Chemical Formula: ClO2
- Molecular Weight: 67.45
- Physical State: Gas at normal temperature and pressure
- Melting Point: -59°C
- Boiling Point: 11°C
- Color: Yellowish-green
- Odor: Similar to chlorine
- Density: Heavier than air
- Solubility: Soluble in water (commonly prepared in aqueous solutions up to approximately 2500–3000 ppm under standard conditions)
- Explosive Limit: Explosive in air at concentrations above 10%
Stability & Handling
Chlorine dioxide is unstable when compressed or stored as a free gas and is therefore not transported in its pure form. Due to safety considerations, it is typically generated on-site at the point of application using two precursor components.
It can decompose when exposed to:
- Ultraviolet (UV) light
- Elevated temperatures
- Highly alkaline conditions (pH > 12)