Dry ice is frozen carbon dioxide (C02), the gas we exhale as we breathe. It is much denser and colder than traditional ice. Dry Ice is -109.3º F (-78.5º C). Traditional ice is 32º F (0 degrees C). In addition, dry ice doesn’t melt – it sublimates. Sublimation is the process of going directly from a solid to a gas. Dry ice bypasses the liquid form, giving it its name “dry” ice.
Types of Dry ices
Industry Usages & Applications
Use dry ice to maintain refrigerator and/or freezer while power is out. The right amount of dry ice can maintain the cold for up to three days.
Camping, Hunting, Fishing, Tailgating, Boating, etc
Use dry ice to keep food and beverages cold all day without the water mess found with regular ice. You can use dry ice to bring game or fish home frozen.
There are a multitude of fun, creative science projects and experiments to be used in schools. Volcanoes, cloud chambers, comets, making baking soda, observing sublimation and gaseous expansion.
Place dry ice in the bottom of your cooler and the fruit directly on top. Close cooler and let fruits freeze for 20-30 minutes. Remove fruit and place in freezer safe plastic bags as needed.
Dry ice, when combined with heavy plastic bags can kill moths, larvae, and eggs through fumigation. Place clothes for fumigation in a plastic bag (at least 3mm thick). Wrap 5 pounds of dry ice in a towel/rag and place inside the bag. Seal the bag but ensure there is enough space for the sublimation to escape rather than building pressure. 20-30 minutes should be adequate time to finish the job.
Mosquitos love dry ice!! ‘Why??? The reason mosquitos are attracted to both animals and humans is because when exhaling, we produce small amounts of CO2 (Carbon Dioxide). When CO2 is detected by a mosquito, is registers the location of it’s next meal of blood. As dry ice sublimes to CO2 gas, it’s equivalent to over 1,000 people breathing at the same time in a close proximity. Therefore the mosquito will zoom in on the dry ice because of the high concentration of 100% pure CO2 gas that dry ice expels. Place 5-10 pounds pieces of dry ice away from areas where people are gathered. Works amazing!
There are a number of applications in the medical field. Doctors will often use dry ice to freeze and remove warts or other skin imperfections. Temperature sensitive medical supplies, samples, and equipment are also commonly transported with dry ice as a cooling agent.
Dry ice can be used to remove car dents and dings as long as there is no crease on the bottom and the sheet metal is not bent. Allow the dent to sit in the sun to warm up (or use a blow dryer). Take a 10 pound slab of dry ice and place directly over the dent. The rapid cooling of the metal will pop the dent back to normal. There is a very small risk of paint scratching with this method however it is quite rare (use at your own risk)
Dry ice is sometimes used either with or as a substitute to liquid nitrogen to remove small skin imperfections, warts, and moles. This method is not to be used at home.