what is dry ice how it is pepared
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Dry ice means solid carbon dioxide.The carbon dioxide gas is pressurized and cooled to form liquid CO2. Then liquid carbon dioxide is injected into either a block press or pelletizer. These machines have chambers in which, once released to atmospheric pressure, the liquid carbon dioxide converts to dry ice snow and carbon dioxide gas.
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dry ice formed by cooling down the carbon dioxide. it directly changes into solid or in gas.,it's liquid form is not possible.
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