TSE EZ-NATE 5991

SECTION 2: Hazards identification

Emergency Overview Danger Toxic; Color Clear, colorless to pale yellow; Form Liquid; Odor Sharp, Pungent Causes respiratory tract irritation. May cause allergic respiratory reaction. Harmful if inhaled. Respiratory sensitizer. Causes skin irritation. May cause allergic skin reaction. Skin sensitizer. Causes eye irritation. Harmful if swallowed. May cause lung damage. Use cold water spray to cool fire-exposed containers to minimize the risk of rupture. Toxic gases/fumes are given off during burning or thermal decomposition. Closed container may explode under extreme heat. The following ratings are subjective. They are provided as a quick hazard guide only. Read the entire MSDS before using the product. Hazard Rating System: Health Flammability Reactivity Incompatibility PPE NFPA: 2 1 -- HMIS: 2* 1 -- X 0 = minimal, 1 = slight, 2 = moderate, 3 = serious, 4 = severe, * = chronic health hazard

Potential health effects

Signs, and Symptoms of Exposure

Principle Routes of Exposure

Skin contact from liquid, vapors or aerosols. Inhalation An inhalation hazard can exist from TDI aerosols or vapors formed during heating, foaming or spraying. Acute Inhalation: TDI vapors or mist at concentrations above the TLV can irritate (burning sensation) the mucous membranes in the respiratory tract (nose, throat, lungs) causing runny nose, sore throat, coughing, chest discomfort, shortness of breath and reduced lung function (breathing obstruction). Persons with a pre-existing, non-specific bronchial hyper-reactivity can respond to concentrations below the TLV with similar symptoms as well as asthma attack. Exposure well above the TLV may lead to bronchitis, bronchial spasm and pulmonary edema (fluid in lungs). These effects are usually reversible. Chemical or hypersensitive pneumonitis, with flu-like symptoms (e.g., fever, chills) has also been reported. These symptoms can be delayed up to several hours after exposure. Chronic Inhalation: With repeated overexposures or a single large dose, certain individuals develop isocyanate sensitization (chemical asthma) which may cause them to react to a later exposure at levels well below the TLV. These symptoms, which can include chest tightness, wheezing, cough, shortness of breath or asthma attack, could be immediate or delayed (up to several hours after exposure). Similar to many non-specific asthmatic responses, there are reports that once sensitized an individual can experience these symptoms upon exposure to dust, cold air or other irritants. This increased lung sensitivity can persist for weeks and in severe cases for several years. Overexposure to isocyanates has also been reported to cause lung damage (including decrease in lung function) which may be permanent. Sensitization can be either temporary or permanent. Acute Skin Contact: Isocyanates react with skin protein and moisture and can cause irritation that may include the following symptoms: reddening, swelling, rash, scaling or blistering. Cured material is difficult to remove. Chronic Skin Contact: Prolonged contact can cause reddening, swelling, rash, scaling, blistering, and in some cases, allergic sensitization. Individuals who have skin sensitization can develop these symptoms from contact with liquid or vapors. Animal tests have indicated that respiratory sensitization can result from skin contact with TDI. This data reinforces the need to prevent direct skin contact with TDI. Acute Eye Contact: Liquid, aerosols or vapors are irritating and can cause pain, tearing, reddening, and swelling. If left untreated, corneal damage can occur and injury is slow to heal. However, damage is usually reversible. Prolonged vapor contact may cause conjunctivitis. Acute Ingestion: Can result in irritation and corrosive action in the mouth, stomach tissue, and digestive tract. Symptoms can include sore throat, abdominal pain, nausea, vomiting and diarrhea. Carcinogenicity International isocyanate Institute No carcinogenic activity was observed in lifetime inhalation studies in rats and mice. NTP: The NTP has listed TDI as a substance that may reasonably be anticipated to be a carcinogen in humans based upon animal studies. IARC: Has listed TDI as a substance for which there is sufficient evidence for its carcinogenicity in experimental animals but inadequate evidence for the carcinogenicity of TDI to humans. OSHA: Not regulated. Exposure Limits: Exposure limits have not been established for this product. Use the exposure limits in Section 2 of this MSDS to TDI.