Hydrogen Flashcards Preview

Fire science Chemistry > Hydrogen > Flashcards

Flashcards in Hydrogen Deck (4)
Loading flashcards...
1
Q

Properties of Hydrogen

A
Gas
Colourless
odouless
Fukin flammable 4% to 74%
Asphyxiant
much lighter than air
2
Q

Hazards of Hydrogen

A

very flammable Static can ignite it
asphyxiant
compressed gas

3
Q

firefighter action

A
BA PPE
cool cylinders
stop leak before extinguishing
spray
evac or stay indoors
4
Q

reactions with hydrogen

A

alkali metals and water release hydrogen
no reaction to water is soluble
react with oxygen to flammability and explosive
Hydrogen gas forms explosive mixtures with air if it is 4–74% concentrated and with chlorine if it is 5–95% concentrated. The mixtures may be ignited by spark, heat or sunlight