Air holes - To allow air to enter the burner
Barrel - To raise the flame to a suitable height for heating
Base - To support the burner and make it more stable
Collar - To control the amount of air entering the burner
Gas intake tube - To allow the gas for the gas supply to rush into the burner
Gas tap - To control the amount of gas supplied to the burner
Which part of the Bunsen flame is the hottest?
Use a pair of tongs to old a short piece of wire and heat the metal wire at different points of the flame (the middle of the inner blue cone, the tip of the inner blue cone and the middle of the outer non-luminous flame).
Experiment pictures!
Heating of the metal wire at the tip of the inner blue cone
Metal wires after heating at different parts of the Bunsen flame
Observations: When the metal wire heated at the tip of the inner blue cone, the metal wire glows the brightest and the end of the wire starts to melt.
Conclusion: The tip of the inner blue cone is the hottest part of the Bunsen flame.
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