TOLUENE DIISOCYANATE -TDI

SECTION 2: Hazards identification

Emergency Overview The purpose of this MSDS is to transmit important product safety information. Physical State liquid Color Clear, colorless to slightly yellow. Odor pungent odor Odor Threshold 0.4 - 2.14 ppm / Odor is not an adequate warning of potentially hazardous ambient air concentrations.

Principle Routes of Exposure

Eye. Inhalation. Skin. Signs and Symptoms of Acute Exposure See component summary. Toluene-2,4-Diisocvanate 384-84-9 Extremely toxic by inhalation - allergic sensitizer. Inhalation may cause asthma-like symptoms, including coughing,wheezing, tightness of chest, shortness of breath, and headache. Severe eye irritant. Moderate skin irritant — allergic sensitizer. Irritating to gastrointestinal tract. Toluene-2,6-Diisocvanate 91-08-7 Extremely toxic by inhalation - allergic sensitizer. Inhalation may cause asthma-like symptoms, including coughing, wheezing, tightness of chest, shortness of breath, and headache. Moderate skin irritant - allergic sensitizer. Severe eyeirritant. Irritating to gastrointestinal tract. Skin Minimal hazard by skin contact; however contact with skin causes skin irritation and may cause skin and respiratorysensitization. Inhalation Exposure to vapor may cause irritation of the eyes, nose, and respiratory tract. Inhalation may cause asthma-like symptoms, including coughing, wheezing, tightness of chest, shortness of breath, and headache. May cause lung damage. Symptoms may be delayed. Eye May cause severe eye irritation. Severe irritation may result in corneal opacity, redness, inflammation of the iris and swelling of the conjuctiva. Ingestion Ingestion may result in irritation of the mouth and digestive tract. Gastroenteritis may result with any or all of the following symptoms: nausea, vomiting, diarrhea, headache. May cause damage to the stomach. Aspiration may cause lung damage.

Potential chronic health

Prolonged or repeated exposure to vapors may cause lung damage. Repeated over exposure to isocyanates and high one time accidental exposures have been associated with gradual decrease in lung function. Repeated inhalation also may cause allergic sensitization of the respiratory tract, resulting in coughing, wheezing, shortness of breath, chest tightness,and other asthma-like symptoms that may be life-threatening. Repeated skin contact may cause irritation and allergic dermatitis. Industrial experience in humans has not shown any link between TDI exposure and cancer development. Toluene-2,4-Diisocvanate 384-84-9 Toluene Diisocyanate (TDI) is a potent skin and respiratory allergic sensitizer. Sensitive individuals may exhibit skin rash,wheezing, tightness of the chest, and difficulty breathing that may progress to a life- threatening inability to breathe. Chronic inhalation may cause lung damage. Listed by IARC as a group 2B - Possible Human Carcinogen. NTP Anticipated Carcinogen Toluene-2,6-Diisocvanate 91-08-7 Sensitive individuals may exhibit skin rash, wheezing, tightness of the chest, and difficulty breathing that may progress to a life-threatening inability to breathe. Chronic inhalation may cause lung damage. Listed by IARC as a group 2B — Possible Human Carcinogen. NTP Anticipated Carcinogen Conditions Aggravated by Exposure This material is an irritant: may aggravate existing dermatitis. Breathing of vapor and/or mist may aggravate asthma and inflammatory or fibrotic lung disease. Exposure may aggravate one or more of the following medical conditions: Asthma or asthmatic bronchitic medical history. History or presence of allergic disease.