Dry ice, also known by the chemical name solid Carbon dioxide, is the solid form of CO2. It is generally in a solid form at -109.3 degrees Fahrenheit and a pressure of 5.11 atmosphere. However, it is also available as a liquid with the right pressurized containers and temperature. At atmospheric pressure, dry ice sublimes, turning into a gas, rather than melting. It doesn’t turn to a liquid form of CO2.

Safe Use and Storage

1. Safety Precautions:

* Avoid touching dry ice directly with bare hands. Always use gloves or a towel. It can easily cause frostbite if it comes in contact with skin.

* Ventilate the area where dry ice is used and stored. Since it releases Carbon dioxide upon sublimation, proper ventilation is essential. Never use it in a closed or confined space.

2. Working Space:

* Use a well-ventilated area.

* Ensure there is adequate space for proper air circulation.

3. Appropriate Storage:

* Dry ice should be stored in special insulated dry ice containers or coolers equipped with proper ventilation to avoid gas build-up.

* Ensure the storage area is free of any water or moisture as moisture coming in contact with dry ice can potentially explode the block of ice.

4. Protective Gear:

* Always use gloves when handling dry ice to avoid direct skin contact.

* Wear closed-toe shoes or heavy boots.

* Safety goggles are recommended to protect your eyes from potential ice chips.

5. Transporting Precaution:

* Keep a window cracked open if carrying dry ice inside a vehicle.

6. Disposal:

* Do not dispose of dry ice in a sink or trash bin as it can cause pressure buildup and cause damage or even explosions.

* The safest way to dispose of it is to sublimate it by placing it in a well-ventilated area until completely evaporated or gradually letting it sublimate in a sink full of warm water.

7. Never Consume:

* Dry ice is NOT safe for consumption. It can lead to severe damage to internal organs if accidentally swallowed.