Uploaded October 2021 | Updated September 2026, 1 hour ago

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This is a butane gas powered bottle launcher.
The combustion formula of butane gas is C4H10 + 6.5O2 = 4CO2 + 5H2O
Butane : Oxygen Volume ratio = 1 : 6.5
The air is contain 20% of O2.
Butane : Air = 1 : (6.5 ÷ 0.2) = 1 : 32.5

3% of butane gas in the butane gas combustion chamber is suitable.
500mL × 0.03 = 15mL