Make Safety YOUR Priority!TM
WHMIS is the "Workplace Hazardous Material Information System"
Class F: Dangerously Reactive Material
Class F materials can undergo dangerous reaction if subjected to heat, pressure, shock or allowed to contact water.
Class E materials:
are very unstable;
may react with water to release a toxic or flammable gas;
may explode as a result of shock, friction or increase in temperature;
may explode if heated when in a closed container;
may undergo vigorous polymerization.
When handling Class F materials you should:
keep material away from heat;
open containers carefully, do not drop them;
store the material in a cool, flame-proof designated area.
Examples: plastic monomers such as butadiene and some cyanides.
Complete list of WHMIS Symbols: