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Product: Carbon Dioxide, Refrigerated Liquid P-4573-D Date: December 2009 <br /> 9. Physical and Chemical Properties <br /> APPEARANCE: Colorless liquid <br /> ODOR: Slight, pungent <br /> ODOR THRESHOLD: Not available. <br /> PHYSICAL STATE: Refrigerated liquid <br /> pH: 3.7 (for carbonic acid) <br /> SUBLIMATION POINT at 1 atm: -109.3°F (-78.5°C) <br /> FLASH POINT (test method): Not applicable. <br /> EVAPORATION RATE (Butyl Acetate = 1): High <br /> FLAMMABILITY: Nonflammable <br /> FLAMMABLE LIMITS IN AIR, % by volume: LOWER: Not UPPER: Not <br /> applicable. applicable. <br /> VAPOR PRESSURE at 70OF (21.1°C): 838 psig (5778 kPa) <br /> LIQUID DENSITY (saturated) at 70°F (21.1°C) <br /> and 1 atm: 47.6 Ib/ft3 (762 kg/m3) <br /> SPECIFIC GRAVITY (H20 = 1): Not available. <br /> SPECIFIC GRAVITY (Air = 1) at 70oF (21.1°C) <br /> and 1 atm: 1.52 <br /> SOLUBILITY IN WATER vol/vol at 68°F (20°C) 0.90 <br /> and 1 atm: <br /> PARTITION COEFFICIENT: n-octanol/water: Not available. <br /> AUTOIGNITION TEMPERATURE: Not applicable. <br /> DECOMPOSITION TEMPERATURE: None <br /> PERCENT VOLATILES BY VOLUME: 100 <br /> MOLECULAR WEIGHT: 44.01 <br /> MOLECULAR FORMULA: CO2 <br /> 10. Stability and Reactivity <br /> CHEMICAL STABILITY: ❑ Unstable ❑ Stable <br /> CONDITIONS TO AVOID: Contact with incompatible materials, exposure to electrical <br /> discharges, and/or high temperatures as stated below. <br /> INCOMPATIBLE MATERIALS: Alkali metals, alkaline earth metals, metal acetylides, <br /> chromium, titanium above 1022°F (550°C), uranium above 13820F (7500C), magnesium above <br /> 14270F (775°C) <br /> HAZARDOUS DECOMPOSITION PRODUCTS: Electrical discharges and high temperatures <br /> decompose carbon dioxide into carbon monoxide and oxygen. <br /> POSSIBILITY OF HAZARDOUS REACTIONS: ❑ May Occur ❑ Will Not Occur <br /> Decomposition into toxic, flammable, and/or oxidizing materials under above-stated conditions. <br /> 11. Toxicological Information <br /> ACUTE DOSE EFFECTS: The welding process may generate hazardous fumes and gases. If <br /> using carbon dioxide for welding and cutting, see Praxair MSDS P-4574, gaseous carbon <br /> dioxide. <br /> Page 5 of 10 <br />