Chemical Demonstration Guidelines from the Professional Association of Chemists
Minimum Safety Guidelines for Chemical Demonstrations
Chemical Demonstrators Must:
- Know the properties of the chemicals and the chemical reactions
involved in all demonstrations presented.
- Comply with all local rules and regulations.
- Wear appropriate eye protection for all chemical
- Warn the members of the audience to cover their ears whenever a
loud noise is anticipated.
- Plan the demonstration so that harmful quantities of noxious
gases (e.g., NO2, SO2, H2S) do not
enter the local air supply.
- Provide safety shield protection wherever there is the
slightest possibility that a container, its fragments, or its
contents could be propelled with sufficient force to cause personal
- Arrange to have a fire extinguisher at hand whenever the
slightest possibility of fire exists.
- Not taste or encourage spectators to taste any non-food
- Not use demonstrations in which parts of the human body are
placed in danger (such as placing dry ice in the mouth or dipping
hands into liquid nitrogen).
- Not use "open" containers of volatile, toxic substances (e.g.,
benzene, CCl4, CS2, formaldehyde) without
adequate ventilation as provided by fume hoods.
- Provide written procedure, hazard, and disposal information for
each demonstration whenever the audience is encouraged to repeat
- Arrange for appropriate waste containers for and subsequent disposal of materials harmful to the environment.