Continuing our new series of chemical recipes, we bring you week 22 – carbon dioxide solid (CO2).
Remember that when preparing any of our recipes, you should:
- Always wear appropriate PPE including eye protection and gloves.
- Always add acid to water (never water to acid).
- Use a fume cupboard.
- Always carry out a risk assessment when using any chemicals.
- Follow all recommended safety procedures and adhere to the label instructions, hazard warnings and local legislations.
What is carbon dioxide solid?
The solid is very cold, it may cause skin burns. Thermal protective gloves such as wielding / leather gardening gloves should be worn if handling the solid.
Rubber gloves should not be worn and all jewellery on hands and wrists should be removed.
Caution: As the solid warms a gas is formed which is an asphyxiant, as it is denser than air, the gas masses at floor level.
It should not be stored or used in confined spaces.
Dry Ice is usually stored in cool boxes made of expanded polystyrene or a Dewar Flas. Other stoppered containers should not be used and the container of dry ice SHOULD NOT be stored in a fridge or freezer.
Students should not handle Dry Ice and should be 3 metres away from a demonstration.
Scan the QR codes for classroom experiments to follow with your carbon dioxide solid.