1. What is Bunsen burner?
1.1. Definition of Bunsen burner
1.2. Bunsen burner working principle
2. What are the parts of Bunsen burner?
3. Bunsen burner flame
4. Bunsen burner specifications and features
4.1. Electric Bunsen burner
4.2. Electric lab Bunsen burner
4.3. Digital Bunsen burner
4.4. Metal Bunsen burner
4.5. Portable Bunsen burner
4.6. Handheld Bunsen burner
5. Bunsen burner and alcohol burner
6. How to use Bunsen burner?
7. Precautions for using Bunsen burner
8. How to order Bunsen burner?
What is Bunsen burner?
Definition of Bunsen burner
Bunsen burner is a high-temperature heating tool commonly used in scientific laboratories, named after the German chemist Robert Wilhelm Bunsen, but modified from one of Faraday's original designs by his assistant Peter Desdega in 1855. The Bunsen burner is used for heating, sterilizing, and burning, and can safely burn gaseous fuels.
Bunsen burner is used in chemistry laboratories because of its high combustion efficiency and low pollution, and it can also be widely used in microbiology or biotechnology flame sterilization.
Bunsen burner working principle
Before the invention of the Bunsen burner, the flame of the gas lamp was bright, but the temperature was not high, which was caused by incomplete combustion of gas. Bunsen improved it by first letting the gas and air mix thoroughly in the lamp, thus making the gas burn entirely and getting a lightless high-temperature flame. The flame is divided into three layers: the inner layer is a mixture of water vapor, carbon monoxide, hydrogen, carbon dioxide and nitrogen, oxygen, the temperature is about 300 ℃, called the flame center. The middle layer inside the gas began to burn, but with incomplete combustion, the flame is light blue, and the temperature is about 500 ℃, called the reduction flame. The outer layer of gas burns completely, the flame is lavender, the temperature can reach 800 ~ 900 ℃, called the oxidation flame, where the highest temperature, so the use of oxidation flame when heating.
What are the parts of Bunsen burner?
There are five main parts of the Bunsen burner
, they are the stopcock, collar, gas source, burner tube, and burner holder, each part plays an important role in the use of the Bunsen burner
Bunsen burner flame
Bunsen burner flame, also known as Bunsen flame, is the normal flame that is stratified when the gas and air are adjusted to the proper ratio when the Bunsen burner is in operation. The Bunsen burner can be divided into inner, middle, and outer layers.
Inner layer, the flame is black, called the flame center, is unburned gas and air, the temperature is about 300 ℃.
Middle layer, gas combustion is incomplete, decomposition into reduced products, called reduction flame, the temperature is higher, light blue.
In the outer layer, gas combustion is complete, there is remaining air, called the oxidation flame, the flame is lavender.
The highest temperature of the Bunsen flame is at the top of the reduction flame oxidation flame, about 800 ~ 900 ℃.
Bunsen burner specifications and features
Electric Bunsen burner
|Continuous working time||60 minutes
|Net weight||407 grams
1. Electric bunsen burner adopts electronic fast ignition, the flame temperature can reach 1300℃.
2. Flame size can be adjusted by using a refillable fuel drum. Uses butane as fuel.
Electric lab Bunsen burner
|Larger temperature range||800 to 1000°C
|Power supply||230V 50/60Hz, 480W
1. Electric lab Bunsen burner uses conical heating elements to focus heat radiation to the top heating hole.
2. Top fairing keeps heat away from your hands.
3. Air flows through the ventilated chamber to ensure the base can be held during operation.
4. Electronic lab Bunsen burner consumes only 400W of energy, MC5 controller recommended.
Digital Bunsen burner
|Control mode||Microcomputer control
|Selectable gas type||LPG 20~50 mbar
Natural gas E/LL,18~25 mbar
|Temperature||1350℃(LPG) 1300℃(Natural gas)
|Power supply|| 240 V / 50/60 Hz max 0.3 A
|Igniter port size||φ23 mm
|Dimension||103 x 49 x 130 mm
1. Digital Bunsen burner adopts the patented streamline shape design, referring to the principle of automobile aerodynamics, avoiding the interference of surrounding airflow on the flame to the maximum extent, which can form a constant blue flame with the best flame temperature and flame shape.
2. Microprocessor control technology, at any time, controls and monitors the working status of the instrument.
3. For just after the use of the Bunsen burner has not yet cooled, there is a high temperature burning head prompt function to protect users from being burned.
4. The streamlined design with sharp corners is easy to clean, the liquid splash can flow out through the built-in flow channel, solid particles can be easily removed from the burner head for cleaning, or the burner head can be simply disassembled for deep cleaning and then easily recovered to ensure the best burning effect and the best sterilization effect.
Metal Bunsen burner
1. All the parts of metal Bunsen burner are made of metal copper and stainless steel materials, strong and durable, smooth surface, not easy to deformation, stable quality, beautiful and long service life.
2. Strictly under the production standard factory, product quality is guaranteed.
Portable Bunsen burner
|Product weight||167g (nozzle + base)
1. Portable Bunsen burner is equipped with air inlet adjustment seal ring, through the adjustment of the seal ring can make the flame hardness and temperature change, suitable for various practical operation needs.
2. The portable Bunsen burner is made of yellow brass, which is strong and durable.
3. Compared with the traditional LPG Bunsen burner, it does not need to be connected to gas hose and LPG bottle, so it can be used anytime and anywhere, which is very portable.
Handheld Bunsen burner
|Gas supply type|| liquefied gas, natural gas
|Gas consumption||0.13kg/h liquefied gas
|Temperature||1350℃（Liquefied gas ) 1300℃（Natural gas)
|Power||1.7kW (liquefied gas), 1kW (natural gas)
1. Handheld Bunsen burner is stable and reliable performance, durable, lightly press the button, you can ignite, release the button, the instrument is extinguished.
2. Knob to adjust the size of the flame, you can get a stable and uniform blue flame, flame temperature up to 1350 ℃.
3. With lock device to meet the needs of long time continuous work.
Bunsen burner and alcohol burner
About alcohol burner
is an alcohol-fueled heating tool that is widely used in laboratories, factories, and medical and scientific research. Since it does not produce smoke during the burning process, it can also be used for sterilization purposes by burning instruments. It can also be used to heat other experimental materials because of the heat generated during the burning process of alcohol lamps. Its heating temperature reaches more than 400-1000℃. And it is safe and reliable.
Difference between Bunsen burner and alcohol burner
* Different temperature
Bunsen burner temperature can reach 800-900℃.
Alcohol burner heats up to 400-1000℃ or more.
* The raw materials used are different
Bunsen burner uses gas or natural gas as fuel for heating apparatus.
Alcohol burner is a heating apparatus fueled by alcohol.
* Working principle is different
Bunsen burner to let the gas and air mix thoroughly in the lamp first so that the gas can burn entirely and get a high-temperature flame without light.
Alcohol burner, mainly by alcohol mixed with air and vapor after burning and get high-temperature flame.
How to use Bunsen burner?
1. First of all, open the windows of the laboratory to keep the air circulation and avoid strong light exposure.
2. Connect the Bunsen burner rubber hose to the gas pipe and put it on the fireproof board.
3. First, turn off the air regulator at the foot of the lamp and light a match on the outlet.
4. Start the gas switch and set the lamp on fire, when the flame is orange.
5. Open the air regulator to let fresh air in, the flame turns blue and the temperature becomes higher.
6. Pull out the Bunsen burner from the gas pipe.
Precautions for using Bunsen burner
1. Before use, all switches of the Bunsen burner should be checked to see if they are off, and only if all switches are off can the main gas switch be turned on.
2. The Bunsen burner should not be turned on after the gas is turned on, but should be turned on gradually after the gas is turned on if there is no gas leak, and when the gas leaks, the gas must be repaired in real-time. When using the Bunsen burner, first place a match or ignition tool such as a torch at the top of the Bunsen burner for ignition, then turn on the gas switch of the Bunsen burner to a suitable size to send out the gas, which will immediately ignite the gas. If the gas is not ignited within 3-5 seconds, the gas switch should be turned off immediately, wait for 10 seconds and then repeat the above ignition process, if it is still not ignited, the ignition process can be repeated.
3. The gas pipeline is generally long, so when the fire is first lit, it is not easy to ignite because there may not be a gas at the Bunsen burner. When the gas is ignited, the flame color should be yellow. If the flame is too large or too small at this point, it should be properly adjusted immediately.
4. After the gas is lit, the air switch should be turned on immediately, so that the combustion is more complete due to the incoming air, and then the flame will slowly turn blue. In the use of Bunsen burner, flame adjustment is particularly worth paying attention to, when the amount of air is not enough, the flame color is yellow, sometimes even black smoke, this yellow flame not only has a lower temperature, and because of incomplete combustion, will be heated on the outer wall of the yellow flame area attached to the tiny carbon particles, if you need to improve the phenomenon, just need to increase the amount of air into the.
How to order Bunsen burner?
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