What are the parts and functions of a Bunsen burner?
Key Terms
- Bunsen burner: lab equipment that creates flame for various uses.
- Barrel: the space above the fuel for the burner’s flame.
- Collar: the area at the bottom of the burner.
- Air holes: aid in controlling the flow of oxygen into the barrel.
- Gas intake: the area that connects burner to the fuel.
What kind of tubing do you use for a Bunsen burner?
Synthetic rubber tubing (Latex free) can be used with all your laboratory burners. This flexible yet firm rubber tubing hose is impermeable to gas and ideal for many applications.
What is a hose in a Bunsen burner?
Product description. This neoprene hose connects your Bunsen, Tirrill or any other type of burner to a fuel source such as liquid propane or natural gas. The hose is commonly used to connect basic, flame stabilizing, meker, tirrill, micro, and gas adjust Bunsen burners.
What are the functions of a Bunsen burner?
A Bunsen burner is a laboratory instrument that can be used to provide a single, continuous flame by mixing gas with air in a controlled fashion. The ratio of gas to air that is mixed together can be manually adjusted, allowing the user to control the intensity, temperature, and size of the flame.
What are the two parts of burner?
A typical Bunsen burner is composed of a few simple parts: A vertical tube or barrel. A base that supports the barrel.
Why is a blue flame hotter than a yellow flame?
If the air hole is closed there is a shortage of oxygen. Combustion is incomplete and less energy is transferred. A blue flame from a Bunsen burner transfers more energy than a yellow Bunsen flame as complete combustion gives a blue flame. Incomplete combustion gives a yellow flame and so less energy is released.
What does the needle valve on a Bunsen burner do?
The needle, or gas flow valve, is also located at the bottom of the barrel and screws into the base of the Bunsen burner. Like the collar, the needle valve can be turned counterclockwise or clockwise to control the flow of gas. Adjusting the needle valve allows the size of the flame to be controlled.
What is a Scoopula in chemistry?
Scoopula is a brand name of a spatula-like scoop utensil used primarily in chemistry lab settings to transfer solids: to a weigh paper for weighing, to a cover slip to measure melting point, or a graduated cylinder, or to a watch glass from a flask or beaker through scraping.
What causes burners to strike back?
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. With too much air, the flame may burn inside the burner tube; that is, it may strike back.
Why is it necessary to check for holes or cracks in the rubber tubing before using them?
Inspect rubber tubing for defects or degradation that could lead to leakage of natural gas or improper seal around the gas outlet nozzle.
Which gas is used in the burner?
Flame temperatures of common gases and fuels
| Gas / Fuels | Flame temperature |
|---|---|
| Methane (natural gas) in air | 1950 °C 3542 °F |
| Hydrogen in air | 2111 °C 3831 °F |
| Propane with oxygen | 2800 °C 5072 °F |
| Acetylene in oxygen | 3100 °C 5612 °F |