2 Bunsen burner Air-hole: to allow air to enter the burner Barrel: to raise the flame to a suitable height for burning or heatingJet: to enable the gas to rush out of the gas supply and to draw in airCollar: to regulate the amount of air entering the burner through the air-holeBase: to support the burner so that it will not toppleGas tap: to control the flow of gas to the Bunsen burner
10 Strike Back occurs when there is too much air entering air-hole instead of burning at the top of the barrel, the gas burns at the jetwhen a strike backoccurs, turn off burner immediately
11 Heating a Liquid in a Beaker put wire gauze (gauze mat) on tripod standput beaker of liquid on itlight Bunsen burner and then push it under the tripod standturn off burner when the liquid reaches required temperature
12 Heating a Liquid in a Test tube hold test tube with test tube holderensure that the mouth of the test-tube is pointing away from myself and othersslant test-tube at an angle of about 45O and heat it in the hottest part of a Bunsen flamemove the test-tube through flameliquid to be heated should occupy no more than one-third test-tube
Your consent to our cookies if you continue to use this website.