Safety Scenario
Safety Scenario
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Scenario
You are about to use a bottle of a pyrophoric reagent in your
hood. As you remove the cap, the bottle catches fire. What now?
Possible solutions
Call for help from someone in your lab and turn on the
emergency exhaust.
Move other flammables or electrical cords out of the way.
Try to smother the fire using sand or salt and the cap if
possible.
Use the
red class ABC
fire extinguisher if the fire spreads
or will not go out. Use the
yellow class
D
extinguisher
from the hallway if it is a pyrophoric metal.
If there is doubt the fire can be managed, close hood and
pull fire alarm. Emergency gas shut off valves for the bay
are near the exit/entrance.
Call EHS to properly dispose of the bottle, cleanup and
replace a discharged extinguisher.
Preventative Measures
Always open pyrophoric materials slowly and carefully in the hood.
Sigma-Aldrich bottles likely have protective air-free seals.
Don’t use an old degraded bottle of a reactive chemical or peroxide
former. Dispose of properly as waste.
In a lab scenario where a pyrophoric reagent catches fire upon opening, quick and precise actions are crucial. Immediate responses include calling for help, using fire extinguishers, and shutting off gas valves. Preventative measures emphasize careful handling of such materials and proper disposal to avoid accidents.
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Presentation Transcript
Safety Scenario PYROPHORIC MATERIALS PYROPHORIC MATERIALS
Scenario You are about to use a bottle of a pyrophoric reagent in your hood. As you remove the cap, the bottle catches fire. What now?
Possible solutions Call for help from someone in your lab and turn on the emergency exhaust. Move other flammables or electrical cords out of the way. Try to smother the fire using sand or salt and the cap if possible. Use the red class ABC fire extinguisher if the fire spreads or will not go out. Use the yellow class D extinguisher from the hallway if it is a pyrophoric metal. If there is doubt the fire can be managed, close hood and pull fire alarm. Emergency gas shut off valves for the bay are near the exit/entrance. Call EHS to properly dispose of the bottle, cleanup and replace a discharged extinguisher.
Preventative Measures Always open pyrophoric materials slowly and carefully in the hood. Sigma-Aldrich bottles likely have protective air-free seals. Don t use an old degraded bottle of a reactive chemical or peroxide former. Dispose of properly as waste.
