Latent heat of fusion 199kj/kg(-56.6 °c). The critical temperature is 31.1 ℃, the critical pressure is 7382kPa, and the critical density is 468kg/m3. The gas relative density (Air = 1) was 1.21.1 at 101 °c and 522.3kPa, and the sublimation temperature was -101 °c at 78.5.3kPa. It is a colorless and odorless gas at normal temperature and pressure. Is a weak acid gas, with a slight pungent odor at high temperature Non-flammable, liquefied into a colorless and tasteless liquid. Solid carbon dioxide for penicillin production, fish, cream, ice cream and other food storage and low-temperature transport.Ĭarbon dioxide is a colorless and odorless gas at normal temperature and pressure. Liquid carbon dioxide is used in welding, fermentation industry, cooling and cooling beverage, sugar industry, medical local anesthesia, and also used as large cast steel anti-foaming agent, plant growth promoter, anti-oxidant and fire extinguishing agent. Gas carbon dioxide is mainly used as soda ash, fertilizer (ammonium bicarbonate, urea) and synthetic methanol and inorganic salt industry raw materials, also used in steel casting quenching and White manufacturing, also used in the manufacture of dry ice. Solubility in water, gas carbon dioxide solubility 171.3g/cm3 water (0 ℃), the aqueous solution is acidic.Ī large number of used as raw materials such as soda ash, sodium bicarbonate, white lead, urea and ammonium bicarbonate, can also be used as fire extinguishing agent, fresh refrigerant, etc. Colorless, odorless, non-combustion, non-combustion, compressed to high-pressure gas.
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