Dry Ice Facts

• Dry ice is solid carbon dioxide.
• CO₂ changes from the gas to solid phase at -78.5°C (−109.3 °F).
•  Dry ice should only be exposed to open air in a well-ventilated environment because otherwise it will choke you and you will die from suffocation.
• The extreme cold makes the solid dangerous to handle without protection due to burns caused by frostbite
• The first published observation of dry ice was in 1835 by French chemist Charles Thilorier. He noted the formation of dry ice when a container of liquid carbon dioxide was opened.