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Chlorine Dioxide (ClO2) Gas Detectors

Chlorine dioxide (ClO2) is an anthropogenic gas, meaning it cannot be found naturally. Chlorine dioxide is most commonly used in sanitizing drinking water and bleaching pulp, flour, and textiles. The gas is highly flammable and reactive—it poses both a fire and explosion hazard.


Characteristics of Chlorine Dioxide

Chlorine Dioxide is a red-yellow or orange-green gas with an unpleasant irritating odor, similar to chlorine and nitric acid. It is best known for its biocide and disinfectant properties.

Chlorine dioxide can remain rather stable in the dark, but can become very unstable in the light. Chlorine Dioxide will react or form an explosive compound if exposed to a spark, impact, sunlight or rapid heating of up to 100°C. Chlorine Dioxide may also react with carbon monoxide, hydrocarbons, mercury, and some nonmetals as well. ClO2 combined with water will form hydrochloric acid, and it has a very strong irritating effect on the upper respiratory tract.

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Will not explode
Extremely toxic
Oxidizing agent
Anthium Dioxide, Chlorine Oxide, Chlorine Peroxide
Exposure limits:
PEL\TWA: 0.1 ppm
STEL: 3 ppm
IDLH: 5 ppm
Pulp and paper mills, wastewater treatment plants

Effects of Various ClO2 Levels

ClO2 Level in PPM
Resulting Conditions on Humans
Odor threshold and Permissible Exposure Limit (PEL).
Mild respiratory ailments.
Short Term Exposure Level (STEL).
Marked irritation occurs of the respiratory tract. Immediately Dangerous to Life and Health (IDLH).
Irritation of the eyes, nose and throat; cough; wheezing; shortness of breath; bronchitis; pulmonary edema; headache; vomiting.

How to Detect Chlorine Dioxide

Industrial Scientific offers the GasBadge® Pro personal single-gas detector and the MX6 iBrid® personal multi-gas detector to keep workers safe in areas where chlorine dioxide gas may be present. This includes confined spaces where explosive concentrations of the gas may accumulate.

Multi-Gas Monitor

MX6 iBrid

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GasBadge Pro

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Radius BZ1

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