- It won't burn.
- No matter how cold you make it, you can't turn it into a liquid at atmospheric pressures.
- It sublimes, going directly from a solid (dry ice) to a gas (one way to make very creepy fog).
- It's heavy. Burning 1 gallon of gasoline (weighing about 8 pounds) produced 25 pounds of CO2.
- You can make a supercritical fluid out of it - a state of matter that is neither solid, liquid, nor gas.
- It's a critical ingredient in chocolate chip cookies - produced in situ by the reaction of sodium bicarbonate and the potassium salt of tartaric acid.
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in The Biology Files
The Who, What, When, Where and Why of Chemistry
Chemistry is not a world unto itself. It is woven firmly into the fabric of the rest of the world, and various fields, from literature to archeology, thread their way through the chemist's text.
Carbon Dioxide Curiousities
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Supercriticality is the most fascinating property of CO2 at once it is an environmental demon and a putative savior!
ReplyDeletedb
I love SuperCritical Fluids!
ReplyDeleteIn fact, related to my profession, I've opened a blog about supercritical fluids.
¿do you know that natural sources of supercritical water exists?
C.U.!