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'Oxidising' is a substance that provides oxygen to allow things to burn more. For example the sodium nitrate I hope this helped because it is what I am learning at school! =)
The candle flame has 4 zones from innermost to outermost: 1)Blue zone: It is near the base of the flame. Here the fresh air rapidly mixes with was vapour formed from the molten wax.A part of wax vapour completely burns and gives rise to blue flame. 2)Dark inner zone: This part consists of unburnt wax vapour given off by molten wax.It is the coldest part of the flame It is dark because of of decomposed carbon particles. 3) Luminous zone: In this zone partial combustion takes place with liberation of a lot of heat. This zone is hotter than the dark inner zone. 4) Non luminous zone:It is a zone were complete combustion takes placeIt is hottest part of the flame and is hardly visible.
Two
the yellow/safety flame - thats the one that burns less the blue flame - burns THE ROARING FLAME - that one burns a lot and you can tell the difference from the blue flame because it makes a roaring sound
2, the inner most cone and the outer.
The hottest flame has an excess of oxygen and has two zones or cones. A lower-temperature flame, meanwhile, has three zones.
THREE!
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.
outer oxidising zone is the second most hottest part of burner flame....
The hottest part of a flame typically consists of three layers: the innermost blue cone where combustion occurs, the intermediate faint blue region where gases mix and ignite, and the outermost yellow region where incomplete combustion occurs.
Basically, you need to look at the flame itself, if the tip of the nozzle is bluish/white, and long , then the flame is a carburising or reducing flame, it contains a high ratio of acetylene compared to oxygen, and will produce a cooler sooty flame. this can be used to make metals more malleable when working them, but the carbon is not helpful, and cannot be used for welding operations An oxidising flame is more pupleish/white and is far hotter, with more oxygen than acetylene, this flame is used in cutting, but will harden steel, making it brittle. in between the two is the neutral flame where welding operations are carried out. Images can be seen at: http://www.twi.co.uk/content/jk3.html (not my site)
The two most polluting zones of a candle flame are the bright yellow outer zone, which contains unburned soot particles, and the dark zone close to the wick, which contains partially burned carbon compounds. These zones contribute to the production of pollutants such as carbon monoxide and particulate matter.
Oxidising is losing eletrons
The ideal ratio of oxygen to acetylene in an oxidizing flame is around 1.1:1. This ratio helps ensure complete combustion of the acetylene, resulting in a clean and efficient flame with sufficient heat output for various welding and cutting applications.
chlorine is oxidising
Fluorine is the strongest oxidising agent.
1) outer zone 2) middle zone 3) inner zone