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The Burning Principle Of Candle

Aug. 07, 2019

Here is Candle Holder Manufacturer talking about the burning principle of candle.

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Candle Holder China

Candle Holder China

The candle burning we see is not the burning of paraffin solids, but the ignition device ignites the cotton core, and the heat released causes the paraffin solid to melt and then vaporize to form paraffin vapor, which is flammable.

When the candle is ignited, the initial burning flame is smaller and gradually becomes larger, and the flame is divided into three layers (outer flame, inner flame, flame heart). The flame heart is mainly candle steam, the temperature is the lowest, the inner flame paraffin is not burned enough, the temperature is higher than the flame core, because some carbon particles, the outer flame is in full contact with the air, the flame is the brightest, the combustion is full, the temperature is the highest, therefore, when A matchstick was quickly placed in the flame and removed after about 1 second. The matchstick exposed to the outer flame first turned black.

At the moment when the candle is blown out, you can see a white smoke, and use the burning match to order the white smoke, which can re-ignite the candle, so it can be proved that the white smoke is the solid produced by the cold solidification of the paraffin vapor. Tiny particles.

When the candle burns, the products of combustion are carbon dioxide and water. Chemical expression: C25H52+O2→ (ignition) CO2+H2O. The phenomenon of burning in an oxygen cylinder is that the flame emits white light brightly, releasing heat, and water mist appears on the bottle wall.

Simple proof experiment:

Light the candle, quickly cover the beaker with a cold and dry beaker over the candle for 5 minutes, and find that the inner wall of the beaker is blurred and water droplets are formed, indicating that the candle burns to form water.

A small amount of clarified lime water was added to the beaker to oscillate. It was observed that the clarified lime water became cloudy, indicating that the candle burned to form carbon dioxide.

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