Storing dry ice in a home without a refrigerator or freezer that has been modified for use with dry ice can be dangerous and should be avoided. Here are some of the potential risks associated with keeping dry ice in an improper storage environment:
Asphyxiation: Dry ice is solid carbon dioxide (CO2) and sublimates (turns into gas) as it warms up. If stored in a small, poorly ventilated area, the released CO2 gas can displace oxygen, leading to an asphyxiation hazard. In extreme cases, this can cause suffocation and unconsciousness.
Pressure buildup: Dry ice sublimates into CO2 gas at a rapid rate. If stored in a sealed container or an area without proper ventilation, the pressure inside the container may increase significantly. This pressure buildup can lead to container rupture or explosion, posing a serious risk of injury.
Cold burns: Dry ice is extremely cold, around -78.5°C (-109.3°F). Direct contact with dry ice can cause severe cold burns and frostbite if not handled properly.
Fire hazard: Dry ice is non-flammable, but it can cause flammable materials in the vicinity to ignite or explode if exposed to the extreme cold temperatures or rapid sublimation.
Damaged surfaces: Placing dry ice directly on surfaces or in non-modified containers can damage them due to the extremely low temperatures and pressure changes.
Inadequate cooling: Dry ice is primarily used for its extremely cold temperature to keep items frozen or chilled. Without proper insulation and sealing, dry ice might not effectively maintain the desired temperature for an extended period.
Given these risks, it is essential to handle dry ice with care and only store it in appropriate containers designed for dry ice storage. If you do not have a suitable container or modified refrigerator/freezer, it's best to avoid keeping dry ice in your home altogether.
If you need to use dry ice for specific purposes, consider purchasing a foam cooler or a specially designed dry ice container to ensure safe storage. When handling dry ice, always wear insulated gloves and use it in a well-ventilated area. If you're unsure about how to handle dry ice safely, consult with professionals or experts in the field.