Table of Contents
When should you not use a Bunsen burner?
Do NOT use a Bunsen burner in any lab when working with flammable liquids or solvents. Inspect the burner, attached tubing, and gas valve before use. Check for holes or cracks in the tubing and replace the tubing if necessary. Use only heat-resistant, borosilicate glassware when using a Bunsen burner.
What should you not do with a Bunsen burner?
Place the Bunsen burner away from any overhead shelving, equipment or light fixtures. Remove all papers, notebooks, combustible materials and excess chemicals from the area. Tie-back any long hair, dangling jewelry, or loose clothing.
What can a Bunsen burner be lit with?
Use a flint striker or lighter with a long nozzle. Don’t use matches to light a Bunsen burner.
Can a Bunsen burner be used in a fume hood?
Never leave a lit Bunsen burner unattended. Keep your hair away and hands away from the open flame. Always use a Bunsen burner in a fume hood if noxious chemical fumes will be produced during the heating process.
What can scientists use a Bunsen burner for?
Bunsen burners are used within laboratories to provide a safe heat source for many Science experiments and tests. Bunsen burners are used for a range of applications for heating, sterilizing and combusting in all kinds of laboratory settings.
Why do we use Bunsen burners?
The Bunsen Burner allows for precise regulation of the mixing of gas and oxygen in its central barrel before combustion, which ignites the flame. By manipulating the Bunsen burner, both the size and temperature of the flame can be controlled.
How do you light a Bunsen burner?
STEPS TO LIGHT BUNSEN BURNER:
- Check connections to burner and desk outlet valve.
- Close needle valve and collar.
- Open desk outlet valve fully.
- Open needle valve 1/2 turn.
- Use the spark lighter to light the flame.
- Adjust collar and needle valve till you see a blue flame.
What is burning back of Bunsen burner?
Strike back occurs when there is too much oxygen and create a green flame at the jet of the Bunsen Burner and creates a loud noise. This only occur when the air hole is fully open.
What happens if you leave a bunsen burner unattended?
As with any flame-producing device, you should never leave an active Bunsen burner unattended. If the Bunsen burner falls off its stand, it could cause a fire. The golden rule of using any flame-burning device, including Bunsen burners, is to watch them at all times.
Which is the hottest part of a bunsen burner?
Bunsen burner. The hottest part of the Bunsen flame, which is found just above the tip of the primary flame, reaches about 1,500 °C (2,700 °F). With too little air, the gas mixture will not burn completely and will form tiny carbon particles that are heated to glowing, making the flame luminous.
Do you need a sparker for a bunsen burner?
Ignite with Sparker. The Bunsen burner should be lit with the accompanied sparker, not a lighter or match. The sparker is a small metal device that creates a spark when pressed. This allows for a safe and effective way to ignite the Bunsen burner once the gas valve has been turned on.
What happens to the flame in a gas burner?
With insufficient primary air, the flame is long, lazy, and slightly luminous. With increase in primary air supply, the flame shortens and becomes non-luminous. The burner is designed to use efficiently the mains gas pressure.