It needs to be open to create the hot, blue flame that roars. If the air hole is shut, the flame will burn yellow, similar to a candle.
I'm only in Yr 7 and i know,anyways the characteristics are what it contains a safety flame is when the flem is on and orangey colour and is not as hot as the blue flame.For example you are using a Bunsen burner (you gotta have used a Bunsen burner at least once at scholl cause i have,any ways the blue flame is always hotter than the orangey flame (the safety flame) because to make a blue flame you need to open the Bunsen burner jacket to let oxygen pass through.Sp the characteristics are that the safety flem is an orangey cour as oppsed o the blue flame,which is also much hotter than the safety flame.
The yellow flame is more visible - making it easier for others to see. It's also a colder flame than the blue conical one.
You need safety goggles
Turning on the burner safely:1. Turn the gas on at the source of the gas line. This can typically be found where the hose fits over the gas line that sticks out from the wall. You will want to turn it on until you can hear the gas flowing smoothly through the hose.2. Turn on the burner slowly. Once you hear the gas, you can light the Bunsen burner. Keep your fingers as far away from the flame as possible. Depending upon the flint you are using, be it a match or a flint gun, you need to light it on the side of the Bunsen burner so that the flame reaches around the flame and away from you.3. Once the flame is lit, you can adjust the height of the flame to what you will need for your experiment. If you are heating something, you will need to adjust the height of the holding tray to the flame. Do not try to adjust the flame to the height of the holding tray. Flames can and will get out of control if you are not meticulous. It could also wrap around the glass container of the substance and burn it to the glass. Every step counts.4. After the experiment is done and all the data is completed, you will need to turn off the Bunsen burner. To do this, make certain whatever you are heating is off the holding tray is removed. These chemicals can get very dangerous when heated, so be cautious. Remember to use tongs to remove the glass container and put it far enough away from the burner to be safe.5. Once the glass container is removed, turn off the gas at the Bunsen burner's base and at the wall. Once the gas is off, the flame should automatically be extinguished. If it is not, you may have a gas leak. Make certain the gas is completely off on both sides. If it is off and the flame has not gone out, alert your professor immediately.jejeje...-sLuRp3e-. ^_^V
To adjust the flame on a Bunsen burner, first make sure the gas is turned on. Then, slowly open the air vent to let in more oxygen, which will produce a blue, hotter flame. Conversely, closing the air vent will produce a yellow, cooler flame.
It needs to be open to create the hot, blue flame that roars. If the air hole is shut, the flame will burn yellow, similar to a candle.
When you have to leave your Bunsen burner but need to keep it alight.
The blue inner flame should be used for strong heating on a Bunsen burner because it is the hottest part of the flame, reaching temperatures up to 1,300°C. This flame is ideal for tasks requiring intense heat, such as boiling liquids or conducting chemical reactions that need high temperatures.
Leaving a Bunsen burner on a luminous flame when not in use ensures that the burner is ready for immediate use and prevents the need for constant relighting, saving time and gas. It also helps maintain a stable flame and prevents potential gas leaks from the burner.
I'm only in Yr 7 and i know,anyways the characteristics are what it contains a safety flame is when the flem is on and orangey colour and is not as hot as the blue flame.For example you are using a Bunsen burner (you gotta have used a Bunsen burner at least once at scholl cause i have,any ways the blue flame is always hotter than the orangey flame (the safety flame) because to make a blue flame you need to open the Bunsen burner jacket to let oxygen pass through.Sp the characteristics are that the safety flem is an orangey cour as oppsed o the blue flame,which is also much hotter than the safety flame.
The yellow flame is more visible - making it easier for others to see. It's also a colder flame than the blue conical one.
Turning a Bunsen burner to a yellow flame, known as a safety flame, is important for safety when you need to leave the lab. This flame is less intense and more visible, reducing the risk of accidents or unnoticed fire hazards. Additionally, a yellow flame indicates that the burner is not in use, helping to prevent potential burns or injuries to others who may enter the area.
The is an 'Air hole' at the bottom of the burner. This air hole has a slip collar , which can be twisted/turned/rotated in order to control the air flow. When the collar is turned such that the air hole is closed, then you have a 'slack' yellow flame. When the air hole is fully open , you have a 'roaring' pale blue flame. The temparture is controlled by the air hole too!!! . With the yellow flame is at its coolest, and with pale blue flame is at its hottest. However, you need a special heat resistant thermometer to insert in to the flame to read the actual temperature.
A Bunsen burner is used in aseptic techniques to create a sterile environment by providing a source of heat for sterilizing tools, such as inoculating loops and needles. The flame from the Bunsen burner can be used to sterilize the equipment before and after use to prevent contamination during experiments or procedures.
To get a blue flame, you typically need to burn a fuel source that produces complete combustion, such as natural gas or propane. This results in a more efficient and cleaner burn, creating a blue flame due to the high temperature and oxygen supply. Adjusting the air-to-fuel ratio and ensuring proper ventilation can also help achieve a blue flame.
Continuing to keep the Bunsen burner open during the experiment ensures a stable flame for heating. It helps maintain a consistent temperature during the process, which is crucial for accurate and reliable results. Closing the Bunsen burner can cause fluctuations in temperature and affect the outcome of the experiment.