GAS, REFRIGERATED LIQUID

SECTION 2: Hazards identification

EMERGENCY OVERVIEW: This is a colorless, odorless, cryogenic liquid mixture. The cryogenic liquid will rapidly boil to the gas at standard temperatures and pressures. A primary health hazard associated with releases of this gas is asphyxiation, by displacement of oxygen. The liquefied gas can also cause freezing of tissue., or I crvoaenic burns, similar to frostbite to eves or skin upon contact. I I 1 - SYMPTOMS OF OVEREXPOSURE BY ROUTE OF EXPOSURE: The most significant routes of overexposure for this gas are by inhalation, and contact with the cryogenic liquid. INHALATION: High concentrations of this gas can cause an oxygendeficient environment. Individuals breathing such an atmosphere may experience symptoms which include headaches, ringing in ears, diuiness, drowsiness, unconsciousness, nausea, vomiting, and depression of all the senses. The skin of a victim of overexposure may have a blue color. Under some circumstances of overexposure, death may occur, due to the displacement of oxygen. The following effects associated with various levels of oxygen are as follows: CONCENTRATION SYMPTOM OF EXPOSURE 12-16% Oxygen: Breathing and pulse rate increased, muscular coordination slightly disturbed. 1 0-1 4% Oxygen: Emotional upset, abnormal fatigue, disturbed respiration. 6-1 0% Oxygen: Nausea and vomiting, collapse or loss of consciousness. Below 6%: Convulsive movements, possible respiratory collapse, and death. CONTACT WITH SKIN or EYES: Contact of the liquid with the skin can lead to severe cryogenic burns or dermatitis (red, cracked, irritated skin), depending upon concentration and duration of exposure. Contact of the liquid with the eyes can cause pain, redness, severe cryogenic burns, and prolonged exposure could cause blindness. Contact with the undiluted liquid will cause frostbite, ulceration of the skin (which may be delayed in appearance for several hours), blistering, and pain. Contact with rapidly expanding gas poses a frostbite hazard. OTHER POTENTIAL HEALTH EFFECTS: Contact with cryogenic liquid or rapidly expanding gases (which are released under high pressure) may cause frostbite. Symptoms of frostbite include change in skin color to white or grayish-yellow. The pain after contact with liquid can quickly subside.

Potential health effects

OR RISKS FROM EXPOSURE An Explanation in Lay Terms. Over-exposure to this refrigerated gas mixture may cause the following health effects: ACUTE: The most significant hazard associated with this gas is inhalation of oxygendeficient atmospheres. Symptoms of oxygen deficiency include respiratory dficulty, ringing in ears, headaches, dizziness, indigestion, and nausea. At high concentrations, unconsciousness or death may occur. Contact with cryogenic liquid or rapidly expanding gases (which are released under high pressure) may cause frostbite. Symptoms of frostbite include change in skin color to white or grayish-yellow. The pain after contact with liquid can quickly subside. CHRONIC: There are currently no known adverse health effects associated with chronic exposure to this refrigerated gas mixture. TARGET ORGANS: Respiratory system. 1