DEUTERATED AMMONIA

SECTION 2: Hazards identification

EMERGENCY OVERVIEW

Product definition

This gas is colorless and has a strong and suffocating odor characteristic of Ammonia. Heath Hazards: This gas can burn and damage eyes, skin, mucous membranes, and any other exposed tissue. Inhalation can cause coughing and breathing difficulty. Overexposure to this gas may be fatal. Delayed pulmonary damage and breathing difficulty may occur. Severe over- exposures can be fatal. Flammability Hazards: Deuterated Ammonia is not readily ignited, but explosions of Ammonia in confined spaces have been reported. Vapor clouds of the gas may be controlled using a water fog. Reactivity Hazards This gas is not reactive.

Environmental hazards

This gas is toxic and can cause harm to plants and animals if released to the environment. All accidental releases must be minimized. Emergency Response Considerations: Extreme caution must be used when responding to releases; persons who respond to releases of this product must protect themselves from inhalation of the gas, especially in areas which are downwind of the release. Emergency responders must wear appropriate personal protective equipment for the situation to which they are responding. (Continued) SYMPTOMS OF OVER-EXPOSURE BY ROUTE OF EXPOSURE: The most significant route of over-exposure for this product is by inhalation. INHALATION: This gas can be extremely irritating or corrosive, depending on concentration and duration of exposure. Low levels of Deuterated Ammonia may irritate the lungs and throat. At higher levels, inhalation exposure may result in severe irritation and burns of mucous membranes, throat and lungs. Delayed pulmonary damage, chemical pneumonitis and breathing difficulty may also occur. Severe inhalation over-exposures can be fatal. As a result of severe exposures to this gas, permanent lung injury may occur. Prolonged or repeated over-exposures to low levels of this gas may cause impaired lung function, bronchitis, or emphysema. Note: Symptoms can develop after over-exposure to concentrations of Deuterated Ammonia are described below. The onset of the symptoms of pulmonary edema can be delayed for hours or days after the exposure. CONCENTRATION OF AMMONIA OBSERVED EFFECT 0.6 - 53 ppm Odor Threshold 25 - 50 ppm Irritation of the eyes and mucous membranes, which can be tolerated for several hours. 100 - 150 ppm Immediate irritation of the throat, which may be tolerated for an hour. 400 - 700 ppm Immediate, severe irritation of the respiratory system and eyes occurs. This concentration of Ammonia is intolerable for even brief exposure. > 5000 ppm This level of exposure may result in rapid death due to suffocation or fluid in the lungs. Exposure to concentrations in excess of 5000 ppm may cause laryngeal spasms, resulting in death. In addition, high concentrations of Deuterated Ammonia gas may cause an oxygen deficient atmosphere. Exposure to high concentrations may cause unconsciousness, and under some circumstances, death. CONTACT WITH SKIN or EYES: When Deuterated Ammonia levels are low, this gas may be irritating to the skin. When Deuterated Ammonia levels are higher, severe irritation of the skin may occur. Repeated, low level skin contact may result in dermatitis (dry, red, itchy skin). Low levels of Deuterated Ammonia (less than 1%) in contact with the eyes, will cause watering, pain and irritation. Higher levels of Deuterated Ammonia may cause severe injury and swelling of the eye tissue. Temporary vision impairment or permanent damage or blindness may occur. Contact with rapidly expanding gases (which are released under high pressure) may cause frostbite. SKIN ABSORPTION: Skin absorption is a significant route of exposure for Deuterated Ammonia following prolonged low-level exposure.

Potential health effects

OR RISKS FROM EXPOSURE Over-exposure to this gas mixture may cause the following health effects: ACUTE: At lower levels, exposure to this gas mixture will irritate the skin, eyes and respiratory system. Higher levels may result in severe irritation and burns of eyes, skin, mucous membranes, and any other exposed tissue. If high concentrations of this gas are inhaled, delayed pulmonary damage and breathing difficulty may occur. Severe inhalation over-exposures can be fatal, as a result of lung damage. CHRONIC: Prolonged or repeated inhalation over-exposures to this gas may cause impaired lung function and emphysema. Repeated skin contact with low levels may cause dermatitis. Refer to Section 11 (Toxicology Information) for additional data. TARGET ORGANS ACUTE Respiratory system, skin, eyes. CHRONIC Skin, respiratory system

HMIS® ratings

HEALTH HAZARD = 3 FLAMMABILITY HAZARD = 1 INSTABILITY HAZARD = 0 Hazard Scale: 0 = Minimal 1 = Slight 2 = Moderate 3 = Serious 4 = Severe