- 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.
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.
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Carbon Dioxide Curiousities
2 comments:
Markup Key:
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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.!