nknbvk
Using a luminous flame to boil water in a test tube can lead to incomplete combustion, resulting in the formation of soot or carbon particles that may contaminate the water. It may also affect the purity of the water due to the combustion products in the flame. It is recommended to use a clean, blue flame for heating applications in the laboratory to avoid this issue.
No. The blue flame is called the roaring flame because it makes a sort of hissing sound, it is also not called the safety flame because it emits very little light so it is a hazard. It is a hazard because you can not see it very well so it is dangerous.
Yellow/Orange. The blue one is harder to see and hotter.
To extinguish an oxidising flame, you should remove the oxygen source by covering the flame with a non-flammable material like a fire blanket or using a fire extinguisher designed for oxidising fires. Never use water on an oxidising fire as it can make it worse.
For heating water with a Bunsen burner, you would use a blue flame. This is the hottest part of the Bunsen burner flame and provides the most efficient heat transfer to the water.
no, it is more safe to use water bath :)
For boiling water, you would typically use a medium to high, blue, non-luminous flame on a Bunsen burner. Adjust the air hole to achieve the desired intensity of the flame.
When you are temporarily not heating anything, you should use a safety flame or a low flame. This type of flame is small and controlled, reducing the risk of accidents and conserving fuel. It provides enough visibility to work safely without the intensity of a higher flame.
As long as the solution is a water-based solution, it should be fine. You should never ever use a Bunsen burner to heat a flammable liquid such as alcohol, ether, acetone, etc.
Which of these expressions you might use depends on what kind of heat you are cooking on. "Low flame" is something you would say if you have a gas stove, and "low heat" suggests an electric one. I have not heard "low fire" but it might be used by people who cook on open fires (a rare thing these days).
nknbvk
Depends mainly on the amount of water and the starting temperature and the measure of the flame.
Using a luminous flame to boil water in a test tube can lead to incomplete combustion, resulting in the formation of soot or carbon particles that may contaminate the water. It may also affect the purity of the water due to the combustion products in the flame. It is recommended to use a clean, blue flame for heating applications in the laboratory to avoid this issue.
Flame cells.. yw
Flame cells.. yw
You can separate calcium chloride from water through evaporation. Heat the solution to evaporate the water, leaving behind solid calcium chloride.