EMERGENCY OVERVIEW Dichlorosilane is a colorless, flammable, toxic gas at room temperature and atmospheric pressure. It has an irritating odor and it fumes in moist air, being hydrolyzed to hydrochloric acid and a mixture of polymeric siloxanes. It is shipped as a liquefied gas in low pressure steel cylinders at a pressure of 66 kPa (9.6 psig) at 20°C. |
SYMPTOMS OF EXPOSURE Corrosive and irritating to the upper and lower respiratory tracts, skin and eyes. It hydrolyzes very rapidly in water or with the moisture in the air yielding hydrogen chloride. Skin burns and mucousal irritation are like that from exposure to hydrochloric acid. Symptoms include lacrymation, cough, labored breathing and excessive salivary and sputum formation. Excessive irritation of the lungs causes acute pneumonitis and pulmonary edema which could be fatal. Hydrochloric acid burns exhibit severe pain, redness, possible swelling and early necrosis. |
