Here are some potential practical experiments that could be carried out safely in a fume cupboard at level 3:
- Preparation of a gas by heating a solid sample, such as heating sodium bicarbonate to produce carbon dioxide gas.
- Preparation of solutions involving reagents that produce toxic/noxious fumes, such as dilute hydrochloric acid and sodium hydroxide to produce chlorine gas.
- Titration experiments producing gas, such as acid-base titrations between strong acids and bases.
- Experiments using volatile organic compounds or other hazardous chemicals requiring local exhaust ventilation, such as ethanol or other alcohols.
- Experiments producing noxious odors, such as