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Oxidizers & Peroxides REACH

Chlorine dioxide

CAS Number
10049-04-4
EC Number
233-162-8
Chemical Formula
ClO2
Molecular Weight
67.45 g/mol
Industries:Food & NutritionTextile, Leather & PaperPharmaceuticals & HealthcareWater TreatmentPulp & Paper

Description

Chlorine dioxide (CAS 10049-04-4 ), also known commercially as Alcide, is a selective oxidizing biocide used across water treatment, food processing, and industrial sanitation. Unlike chlorine-based alternatives, it remains effective across a broad pH range. This stability makes it a preferred active in systems where consistent microbial control is critical. In municipal and industrial water treatment, it disinfects distribution systems and controls biofilm without generating trihalomethanes. Food processing facilities use it to sanitize surfaces, equipment, and wash water for fresh produce, poultry, and seafood. Pulp and paper manufacturers apply it as a bleaching agent to brighten cellulose fibers effectively. This application minimizes fiber degradation compared to elemental chlorine. In pharmaceutical and healthcare environments, it functions as a sporicidal agent for cleanroom decontamination and hard surface disinfection. Chlorine dioxide is supplied as an aqueous solution or generated on-site from precursor systems, as the pure gas is unstable for bulk transport. Stabilized solution concentrates are available for dilution prior to use. These concentrates are suitable for food-grade and industrial applications. Grades are available to meet food processing compliance requirements, with technical-grade solutions supplied for industrial water treatment and pulp bleaching. Contact us for supply of Chlorine dioxide Request Quote

Other Names (Synonyms)

chlorine(IV) oxide | ClO2(.) | Alcide | Chlorine oxide (ClO2) | Purite | Joyden | Joyden plus | Nobda disinfectant

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point-59 °C
Boiling Point11 °C
Density1.6 g/cm³ @ Temp: 0 °C
AppearanceChlorine dioxide is a flammable, reddishyellow gas, or reddish-brown liquid (below 11C/52F) with an irritating odor like chlorine or nitric acid.
Colororange-green
Formorange-green gas
Water SolubilitySoluble ºC
Vapor Pressure0-22900Pa at 20-25℃
Log P-3.22--2.9 at 20℃

Safety & Handling

Danger
GHS03· OxidizerGHS04· Compressed GasGHS05· CorrosiveGHS06· ToxicGHS09· EnvironmentGHS07· IrritantGHS08· Health Hazard

Hazard Statements

H270May cause or intensify fire; oxidizer
H280Contains gas under pressure; may explode if heated
H301Toxic if swallowed
H314Causes severe skin burns and eye damage
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H320Causes eye irritation
H330Fatal if inhaled
H332Harmful if inhaled
H336May cause drowsiness or dizziness
H341Suspected of causing genetic defects
H360May damage fertility or the unborn child
H362May cause harm to breast-fed children
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P220Keep away from clothing and other combustible materials.
P244Keep valves and fittings free from oil and grease.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P263Avoid contact during pregnancy and while nursing.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P284In case of inadequate ventilation wear respiratory protection.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P318IF exposed or concerned, get medical advice.
P319Get medical advice/attention if you feel unwell.
P320Specific treatment is urgent (see … on this label).
P321Specific treatment (see … on this label).
P330Rinse mouth.
P363Wash contaminated clothing before reuse.
P391Collect spillage.
P403Store in a well-ventilated place.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P316Get emergency medical help immediately.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P376In case of fire: Stop leak if safe to do so.
P233Store in a well-ventilated place. Keep container tightly closed.
P403Protect from sunlight. Store in a well-ventilated place.
P331Rinse mouth. Do NOT induce vomiting.
P354IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

UN Number9191