Using dry ice allows for the delicate asphalt to stay at required temperatures during transport from the manufacturing plant to job site. Even more beneficial, using dry ice allows contractors to speed up the cooling process and core the paving sooner.
Dry Ice will loosen floor tile by freezing and slightly shrinking them allowing easier removal. The cold temperature of the Dry Ice will break the bond of the adhesive. Place the Dry Ice sheets centered on the tile to be removed and wait until it is completely frosted. If it has not popped off, slight tapping with a hammer or prying with a screwdriver will allow it to be lifted off easily. It is too time consuming to remove a whole floor, but is ideal for removing a few tiles that need replacing.
Dry ice will remove oxygen from flammable containment tanks if placed inside, reducing the risk of flammable vapors catching spark and exploding.
Dry ice causes molecules to band closer together and "shrink".
DRY ICE BLASTING - Dry ice blasting has become the fastest growing application of CO2 in the entire industry. Similar to sand blasting, dry ice blasting uses a jet nozzle and compressed air to shoot small pellets of dry ice (blasting rice) with superior results. The extreme cold causes targeted material to shrink, allowing for easier removal. The used blasting rice will sublimate into gaseous CO2 after use which makes cleanup a breeze.
Dry ice will replace oxygen in a container preventing or extinguishing fires. The most common use is for safely removing underground gas storage tanks.
Dry ice can be used to freeze pipes, essentially stopping the flow of water at point of contact. This method is very useful if you are unable to access the main shutoff valve. Once the pipes are frozen, proceed with repairs.
PRESERVE SEEDS AND GRAINS - Dry ice can be used to protect post-harvested seeds and grains from bacteria, fungi, and insects. Place what you desire to store into a storage container with a small vent on top. Add dry ice to container (amount varies depending on container size). The dry ice will sublimate into gaseous CO2 and displace oxygen and keep contents at low temperatures to kill fungi and bacteria.
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)
There are a number of applications in the medical field. Doctors will often use dry ice as a subsitue to liquid nitrogen 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.
BAKING INDUSTRY-Dry Ice is used in mixing ingredients and retarding yeast growth until the proper time.
When CO2 is added to plain water it will make sparkling mineral water. CO2 is extensively used throughout the world in the beverage industry for making soda pop.
Placing Dry Ice in the bottom of a dry food storage container is a very economical way to fumigate and store dry goods for an extended amount of time. Make sure the Dry Ice is not frost covered, as that will add moisture. Put one quarter pound of Dry Ice per five-gallon storage container in the bottom and then pour in the dry food. As the Dry Ice sublimates it replaces the oxygen in the container with CO2. Leave the lid on but not tightly sealed until the Dry Ice completely sublimates. (About 5-6 hours) Then snap the lid tight. Without oxygen, neither bugs nor bacteria can grow. This process is good for seeds, grains, legumes, flower, powdered milk, etc.
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.
Using a fog machine or buckets of hot water and a fan, many shows are enhanced by adding flowing fog.
With dry ice, you can take Popsicles, ice cream or other refrigerated items on your outings. Place dry ice in bottom of your cooler, cover it with a cotton towel, cardboard, or paper (newspaper works well), then place food and beverages on top.
Place dry ice in a cauldron or bucket (metal or plastic), then add hot water to create fog for your Halloween party, or display.
Dry ice will keep ice cream frozen without the need for electricity.