Hydrogen 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
