Lighting and Adjusting a Bunsen Burner Flame Essential

Lighting and Adjusting a Bunsen Burner Flame

Essential Questions • What are the correct steps to lighting a bunsen burner? • What are the parts of a flame?

Step 1 • Make sure your safety goggles are on and your hair is tied back. • the gas outlet, the gas adjustment and the air adjustment should all be in the closed or off position

Step 2 • Check to see if the other person sharing your outlet has closed their gas adjustment on their Bunsen burner • open the gas outlet at the wall

Step 3 • open the gas adjustment on your Bunsen burner

Step 4 • Hold the striker over the barrel to catch gas in the cup • squeeze the striker repeatedly until the Bunsen burner lights

Step 5 • When the Bunsen burner lights, the flame will be yellow and too tall. • Open the air adjustment and add air until the flame is light blue and has a good inner and outer cone

Step 6 • If the flame begins to make a rattling sound you have added too much air and the burner is about to go out. • Close the air adjustment until the flame is quiet.

Step 7 • Finally, use the gas adjustment to adjust the size of the flame to about 2 inches in height.

Step 8 • If you have ANY problems, close the gas outlet and call the teacher

Parts of a Bunsen Burner Barrel Air adjustment Gas adjustment base Gas intake

Parts of a properly adjusted flame Outer cone Inner cone hottest not very hot

Temperature of a Methane Flame hottest (tip of inner cone) not very hot (inside of inner cone)