Chlorine Dioxide Gas

SECTION 2: Hazards identification

OSHA GHS Classification GHS: Contact Hazard- Skin Category 2 - Causes skin irritation GHS: Contact Hazard- Eye Category 1 - Causes serious eye damage GHS: Acute Toxicity- Inhalation Category 2 – Fatal if inhaled GHS Acute Toxicity- Oral Category 3 – toxic if Swallowed GHS Target Organ Toxicity (Single Exposure) Category 2 – May Cause Damage to Respiratory System, Blood, Kidneys GHS Target organ Toxicity (Repeated Exposure) Category 2 – May Cause Damage to Blood and/or Kidneys GHS: Carcinogenicity Not classified as a carcinogen per GHS criteria. This product is not

Signal word

Hazard Pictograms GHS Hazard Statements GHS- Health Hazard Statement(s) Fatal if Inhaled Toxic if Swallowed Causes Serious Eye Damage Causes Skin Irritation May Cause Damage to Organs (Respiratory, Kidney and Blood Systems) May Cause Damage to Renal System (Kidneys) and Blood System Through Prolonged or Repeated Exposure

Precautionary statements

Do not Breathe Dust, Fume, Gas, Mist, Vapors, or Spray In Case of Inadequate Ventilation, Wear Respiratory Protection Wear Protective Gloves, Protective Clothing, Eye and Face Protection Wash Thoroughly After Handling Use Only Outdoors or in a Well-Ventilated Area Do Not Eat, Drink or Smoke When Using This Product Keep Away From Heat Keep/Store Away From Clothing and Other Combustible Materials Take any Precaution to Avoid Mixing with Combustibles IF INHALED: Remove person to fresh air and keep comfortable for breathing Specific treatment is urgent (see Section 4 of SDS or First Aid information on this label) IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do so. Continue rinsing IF SWALLOWED: Immediately call POISON CENTER or doctor/physician. Rinse mouth. Specific Treatment (see Section 4 of the safety data sheet and/or the First Aid information on the product label) IF ON SKIN Wash with plenty of water. If skin irritation occurs Get medical advice/attention. Take off contaminated clothing and wash it before reuse. IN CASE OF FIRE: Use agent suitable for surrounding fire to extinguish EMERGENCY OVERVIEW: A greenish-yellow gas with a pungent odor similar to chlorine. STRONG OXIDIZER. Gas and solutions are severe respiratory irritants. May cause pulmonary edema, which may be delayed in onset. ClO2 gas partial pressures above 10% volume can decompose spontaneously with a corresponding pressure pulse or “puff”. Generation capacity is stoichiometrically limited to 4%. In-use concentration typically range from 0.04% to 0.18%. Decomposes on exposure to sunlight or UV. CORROSIVE to the eyes and skin. Can cause damage to vegetation. Read the entire MSDS for a more thorough evaluation of the hazards. General: Chlorine dioxide normally exists as a gas at room temperature and the most important route of exposure is inhalation, followed by eye and skin exposures.

Potential health effects

Inhalation: Severe respiratory irritant. May cause bronchospasm and pulmonary edema, which may be delayed in onset. May also cause severe headaches. All symptoms may be delayed and long lasting. Long term exposure may cause chronic bronchitis. Ingestion: Not applicable. Skin Contact: May be harmful if absorbed through skin. May cause skin irritation. Eye Contact: Severe irritant. Exposure may cause visual disturbance, i.e., seeing halos around lights. Exposure Limits: ACGIH 1992-93: TWA 0.1 ppm, STEL 0.3 ppm (0.9 mg/m3). Carcinogenicity: Not listed by IARC or ACGIH. Mutagenicity: Information not available. Reproductive Effects: Information not available. Teratogenicity and Fetotoxicity: Information not available. Synergistic Materials: May have synergistic effects in conjunction with chlorine, other chlorine oxides and chlorine fluorine compounds.

2.1 Classification of the substance or mixture

GHS: Contact Hazard- Skin Category 2 - Causes skin irritation GHS: Contact Hazard- Eye Category 1 - Causes serious eye damage GHS: Acute Toxicity- Inhalation Category 2 – Fatal if inhaled GHS Acute Toxicity- Oral Category 3 – toxic if Swallowed GHS Target Organ Toxicity (Single Exposure) Category 2 – May Cause Damage to Respiratory System, Blood, Kidneys GHS Target organ Toxicity (Repeated Exposure) Category 2 – May Cause Damage to Blood and/or Kidneys GHS: Carcinogenicity Not classified as a carcinogen per GHS criteria. This product is not classified as a carcinogen by NTP, IARC, or OSHA Signal Word: Warning Hazard Pictograms: GHS Hazard Statements: GHS- Health Hazard Statement(s) Fatal if Inhaled Toxic if Swallowed Causes Serious Eye Damage Causes Skin Irritation May Cause Damage to Organs (Respiratory, Kidney and Blood Systems) May Cause Damage to Renal System (Kidneys) and Blood System Through Prolonged or Repeated Exposure