Dry ice is the solid form of carbon dioxide and has many different applications in various industries and daily life. Here are some of the most common uses of dry ice:

• Freezing and preserving food: Dry ice is used for freezing at ultra-low temperatures or freeze drying without using water to preserve food, extending its shelf life. It can also be used for keeping foodstuff cool, such as on aircraft where refrigeration systems are not available.

• Special effects: Dry ice is used in photography, film, and theater for special effects. The sublimation creates excellent visual effects, such as fog and smoke.

• Transportation of biological samples and medicines: Dry ice is much colder than ice, remains colder for longer, and does not melt. These properties are ideal for transporting pharmaceutical products such as vaccines that have to be kept at very cold temperatures before use to maintain their potency. Biological samples such as blood and tissue must also be kept at ultra-low temperatures during storage.

• Industrial cleaning: Dry ice blasting is a cleaning method that uses dry ice pellets to remove contaminants from surfaces. It is a fast, effective, and environmentally friendly way to clean industrial equipment and machinery.

• Killing weeds: Dry ice can be used to kill weeds that are troublesome during irrigation in agriculture fields.

• Cooling air conditioners: In some nightclubs, dry ice is used as a cooling agent for air conditioners as it emits CO2 gas without causing pollution.

• Determining the age of a tree: Dry ice can be used to determine the age of a tree.

• Exterminating rodents and insects: Dry ice can be used as bait to trap mosquitoes, bedbugs, and other insects, due to their attraction to carbon dioxide. It can also be used to exterminate rodents by dropping pellets into rodent tunnels in the ground and then sealing off the entrance, thus suffocating the animals as the dry ice sublimates.

• Stopping the flow of water in pipes: Dry ice can be used to quickly freeze pipes, stopping the flow of water at the point of contact. This method is very useful if you need to repair plumbing pipes.

Dry ice should be handled with care and stored properly to avoid any hazards. It is important to follow safety regulations when handling and storing dry ice.