Health Effects
Chlorine dioxide exposure can irritate the nose and throat, causing coughing and chest pain; eye irritation, irritate the lungs causing coughing and/or shortness of breath. Higher exposures can cause a build-up of fluid in the lungs (pulmonary oedema), with severe shortness of breath and possibly death.
RTECS Description: Mutagen, Reproductive Effector, Primary Irritant
Carcinogenicity: IARC/NTC Not listed as carcinogenic
Exposure Limits:
ACGIH: TWA = 0.1 ppm; STEL = 0.3 ppm
NIOSH REL = 0.1 ppm, STEL 0.3 ppm
IDLH = 5 ppm
OSHA: PEL = 0.1 [29 CFR 1910.1000, Table Z-1]
Steri-Trac® ClO2 Monitor
Availability: Special order
Specifications:
Sensor Type: Electrochemical
Range: 0 – 1 ppm
Resolution: 0.01 ppm
Temp Range: -20 to +40 oC
Response time (t50): <20 (4 min exposure time)
Properties and Applications:
Chlorine dioxide is a strong oxidant and finds application as a bleaching agent, especially in pulp & paper and disinfection of drinking water, biocide and sterilant gas. Due to its reactivity, chlorine dioxide is almost always generated at the site of use.
Physical Properties:
Chemical Formula: ClO2
Physical form: reddish yellow gas
MP: -59.5 oC
BP: 11 oC
pKa: 2.5 – 3.5
MW: 67.45 g/mol
Rel. Gas Density: 2.3 (Air = 1)
Odor threshold 9.2 ppm
Classification Numbers:
CAS No.: 10049-04-4
EC No.: 233-162-8
RTECS: FO3000000
*Specifications subject to change
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