We have focused here on making the experiments as safe as possible. However, students should wear standard personal protective equipment such as lab aprons/coats, safety goggles, and disposable latex or nitrile gloves. Students should use caution around hot plates. The ethanol waste produced from the synthesis experiments (used for washing the MOF(s)) may also contain unreacted reagents as well as the MOFs themselves. This waste should be disposed of in accordance with local laws. Students should use caution to not touch the solid CO2 pellets, and to hold the plastic bottle at the neck of the bottle (not at the bottom) to avoid frostbite on extended contact with skin.