2004-12-01_REVISION - M1977208 (2)

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3. HAZARD IDENTIFICATION Carbon Dioxide Gas and Cryogenic Liquid EMERGENCY OVERVIEW: Carbon Dioxide is a wlodess gas, or a colodess, cryogenic liquid. At low concentrations, both the gas and the liquid are ododess. At higher concentrations Carbon Dioxide will have a sharp, acidic odor. At concentrations between 2 and 10%, Carbon Dioxide can cause nausea, dimness, headache, mental confusion, increased blood pressure and respiratory rate. If the gas concentration reaches 10% or more, suffoceUon and death can occur within minutes. Contact with the cold gas can cause freezing of exposed tissue. Moisture in the air could lead to the fonnafion of carbonic acid that can be irtitating to the eyes. All forms of Carbon Dioxide are non- combustible. Carbon Dioxide is heavier than air and should not be allowed to accumulate in low Ivina areas. CARBON DIOXIDE GAS rtnznrtoorrs MnlEanurfot>annnar, sys1EM HEALTH la<u~ , ~FLANINIABILITY ~> REACTIVITY ~~ a PROTECTIVE EQUIPMENT s ~,ni« ® ~ Sectiw 8 ~ s~ Section 8 for matins iMUShial aprlir~iars CARBON DIOXIDE LIQUEFIED rlnznrtoous Mntean~ rnFOar,,nnaN svsreM HEALTH ,~~, FLAMMABILITY Imo, o REACTIVITY ~~ e PROTECTIVE EQUIPMENT X 8 ~ Section 8 ~ see Section 8 Far mrline irMx66ial applipUps SYMPTOMS OF OVEREXPOSURE BY ROUTE OF EXPOSURE: The most significant route of overexposure for this gas is by inhalation. The following paregrephs describe symptoms of exposure by route of exposure. INHALATION: Carbon Dioxide is an asphyxiant and a powerful cerebrel vasodilator. If the concentration of Carbon Dioxide reaches 10% or more, suffocation can occur repidty. Inhalaton of concentrations between 2 and 10% can cause nausea, dizziness, headache, mental confusion, increased blood pressure and respiratory rate. Carbon Dioxide initially stimulates respiration and then causes respiratory depression. Inhalation of low concentrations (3-5%) have no known permanent harmful effects. Symptoms in humans at vadous levels of concentration are as follows: CONCENTRATION SYMPTOMS OF EXPOSURE 1%: Slight increase in breathing rate. 2%: Breathing rate increases to 50% above normal; prolonged exposure can cause headache, tiredness. 3%: Breathing increases to twice normal rate and becomes labored. Weak narcofic effect. Impaired hearing, headache, increase in blood pressure and pulse rate. 4-5%: Breathing increases to approximately four times normal rate, symptoms of intoxication become evident and slight choking may be felt. 5-10%: Characteristic sharp odor noticeable. Very labored breathing, headache, visual impairment and ringing in the ears. Judgment may be impaired, followed by loss of consciousness. 50-100%: Unconsciousness occurs more rapidly above 10% level. Prolonged exposure to high concentrations may eventually result in death from asphyxiation. High concentrations of this gas can also puss an oxygen~efx:ient environment. However, the asphyxiating properties of Carbon Dioxide will be reached before oxygenrleficiency is a factor. CARBON DIOXIDE • COZ MSDS (tx~cur+tErrr,roo,o,3f PAGE 2 OF 12