Walmart, Safeway and Kroger are grocery stores that sell dry ice. Penguin Brand sells dry ice, and it provides a directory of stores in which its products can be purchased by searching by address or zip code. Dry Ice Info also provides a directory of stores where consumers can purchase dry ice.
Dry ice is made from solid carbon dioxide, and it is named because it changes from a solid to gas without going through the liquid phase. It is minus 109 degrees Fahrenheit, which is 141 degrees below the freezing point of water, and must be handled with gloves or a towel. If it comes in contact with bare skin, it causes severe burns. Dry ice transforms into carbon dioxide gas, so it may displace oxygen and present a suffocation hazard in a confined space. The process of turning from a solid directly to a gas is sublimation. If stored in an airtight container, sublimation can cause the container to explode. Dry ice can be used to keep perishables fresh, fix car dents, make root beer, fuel educational experiments, and get rid of bed bugs, moles, gophers and moths. Dry ice can also be used to carbonate soda.