Carbon Dioxideis a molecule with a molecular formula CO2. At room temperature (20–25 ˚C) CO2 is odourless, colourless, gas which is faintly acidic & non-flammable.
CO2 mainly consists in gaseous form, but it also has a solid & liquid form. It can be only solid when the temperature is below 78 ˚C. CO2 is only water soluble, when pressure is maintained.
After pressure drops the CO2 gas will try to escape to air.
It is used in soft drinks & beer to make them fizzy. CO2 released by baking powder or yeast makes cake batter rise.
The solid form of CO2 known as Dry Ice is used in theatres to create stage fogs & make things like “Magic Potions” bubbles.
CO2 is highly soluble in water at moderate pressure, in oils and plastics at elevated pressures. |
