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Please explain the topic about bunsen burner in the photo attached

Please explain the topic about bunsen burner in the photo attached

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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Please explain the topic about bunsen burner in the photo attached
O BUNSEN BURNER XNX WHAT IS BUNSEN BURNER? Bunsen burner is a gas burner consisting typically of a straight tube with small holes at the bottom where air enters and mixes with the gas to produce an intensely hot blue flame A 88 Uses of Bunsen Burner to provide a single open gas flame that can be used for heating, combustion or sterilization purposes in a biochemistry lab. The gas can be methane, liquified petroleum gas (LPG), propane or butane. There is a valve on the bunsen burner that controls the amount of gas that flows and the collar(the ring-like thing with a hole in it) controls the amount of oxygen (the air). The size of the flame of the bunsen burner depends on the amount of air that flows in through the hole at the bottom of the metallic 'throat'.
Transcribed Image Text:O BUNSEN BURNER XNX WHAT IS BUNSEN BURNER? Bunsen burner is a gas burner consisting typically of a straight tube with small holes at the bottom where air enters and mixes with the gas to produce an intensely hot blue flame A 88 Uses of Bunsen Burner to provide a single open gas flame that can be used for heating, combustion or sterilization purposes in a biochemistry lab. The gas can be methane, liquified petroleum gas (LPG), propane or butane. There is a valve on the bunsen burner that controls the amount of gas that flows and the collar(the ring-like thing with a hole in it) controls the amount of oxygen (the air). The size of the flame of the bunsen burner depends on the amount of air that flows in through the hole at the bottom of the metallic 'throat'.
● ● Special precautions on how to use the instrument 10 % Locate where the fire safety equipment like blankets, fire extinguisher, fire alarms etc are in the lab so that in case of an accident you know where to look for one. First light the splinter before turning on the Bunsen burner and use the valves and collar to control the amount of gas and oxygen flowing in through the hole so that the flame burns blue and not yellow. Blue flames are oxygen-rich therefore they burn hotter and yellow flames are oxygen-deprived so they are comparatively cooler than blue flames. Also, yellow flames tend to be uncontrolled, and in comparison blue. flames then to be controlled. Since the Bunsen burner is a source of open flame, care must be taken to locate and operate it away from flammable material. Always use a tong for test tubes and a stand with wired mesh for beakers when heating reaction mixtures on an open flame. If the reaction mixture in the test tube contains biomolecules, then heat it in a water bath(a beaker containing water, heated on Bunsen flame ). Open flames from the bunsen burner tend to unevenly heat the reaction mixture and the mixture can boil out of the test tube unpredictably and cause burn injuries.
Transcribed Image Text:● ● Special precautions on how to use the instrument 10 % Locate where the fire safety equipment like blankets, fire extinguisher, fire alarms etc are in the lab so that in case of an accident you know where to look for one. First light the splinter before turning on the Bunsen burner and use the valves and collar to control the amount of gas and oxygen flowing in through the hole so that the flame burns blue and not yellow. Blue flames are oxygen-rich therefore they burn hotter and yellow flames are oxygen-deprived so they are comparatively cooler than blue flames. Also, yellow flames tend to be uncontrolled, and in comparison blue. flames then to be controlled. Since the Bunsen burner is a source of open flame, care must be taken to locate and operate it away from flammable material. Always use a tong for test tubes and a stand with wired mesh for beakers when heating reaction mixtures on an open flame. If the reaction mixture in the test tube contains biomolecules, then heat it in a water bath(a beaker containing water, heated on Bunsen flame ). Open flames from the bunsen burner tend to unevenly heat the reaction mixture and the mixture can boil out of the test tube unpredictably and cause burn injuries.
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