- 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.
1 day ago in The Phytophactor