Quick Answer: What Is The Coldest A Fire Can Be?

What is the hottest fire color?

blueWhile blue represents cooler colors to most, it is the opposite in fires, meaning they are the hottest flames.

When all flame colors combine, the color is white-blue which is the hottest.

Most fires are the result of a chemical reaction between a fuel and oxygen called combustion..

What temperature can start a fire?

around 1100-1200KFor traditional flames, the minimum temperature is usually around 1100-1200K, which is the the temperature where chain reactions that favor combustion start to dominate. Cool flames are an interesting phenomenon where flames may be sustained at temperatures as low as 400C.

Is it harder to light a fire in the cold?

The Problem with Cold Flues This air will fall into your home and keep coming because cold air falls. As this cold air pushes down, it is difficult for the fire’s heat to push up. The fire will burn inefficiently unless you take measures to warm up, or prime, the flue.

Can fire be cold enough to touch?

The only reason that fire is fire, is because the chemical reaction is powerful enough to emit light(via electrons moving up and down specific orbits.) Towards OP’s question, any flame with visible blackbody radiation will be too hot to touch. …

Is Black Fire Possible?

Flames emits light and heat, so it seems impossible to make black fire. However, you actually can make black fire by controlling the wavelengths of absorbed and emitted light.

Can things catch fire in space?

In space, of course, you can’t have any fires because there isn’t any oxidizer (i.e. oxygen) to sustain the combustion process. … In space, of course, you can’t have any fires because there isn’t any oxidizer (i.e. oxygen) to sustain the combustion process.

Is white fire hotter than blue fire?

The part of the flame closest to the candle or the wood will usually be white, since the temperature is usually greatest near the fuel source. … The color blue indicates a temperature even hotter than white. Blue flames usually appear at a temperature between 2,600º F and 3,000º F.

Does a black flame candle exist?

To make a black flame candle at home, you need a variety of materials. Making black flame candles proves to be easy, contrary to the amount of ingredients needed for the formula. Much like the glow of a black light, black flame candles possess an eerie blue-cast glow.

Can you freeze a fire?

So, to freeze fire would essentially mean to solidify a substance which is reacting (oxidizing, to be precise), Also, this needs to be done reversibly, i.e., if you apply heat to this hypothetical substance it will become liquid and if you take away heat it will become solid. … It is not possible to freeze fire.

Can a flame be cold?

Nope. Fire is a self-sustaining exothermic chemical reaction. … To have a cold fire, you would need some gas-phase reaction that absorbs heat (endothermic), and gets faster at low temperature, with a negative activation energy.

What is the coldest fire color?

Actually, the hottest part of the candle flame is the blue part, at 1670 degrees F (1400 C.) That is where the flame has the most oxygen and you are getting complete combustion. The reddish part is the coolest part, about 1070 F (800C).

What is the lowest temperature fire?

A cool flame is a flame having maximal temperature below about 400 °C (752 °F). It is usually produced in a chemical reaction of a certain fuel-air mixture. Contrary to conventional flame, the reaction is not vigorous and releases very little heat, light, and carbon dioxide.

Is Green fire the hottest?

The inner core of the candle flame is light blue, with a temperature of around 1800 K (1500 °C). That is the hottest part of the flame. The color inside the flame becomes yellow, orange, and finally red. The further you get from the center of the flame, the lower the temperature will be.

What do black flames mean?

This is black fire. When you mix a sodium street light or low-pressure sodium lamp with a flame, you’ll see a dark flame thanks to the sodium and some excited electrons. “It’s strange to think of a flame as dark because as we know flames give out light, but the sodium is absorbing the light from the lamp.

Is there a temperature too cold for fire?

The heat from the flame vaporizes the fuel which then mixes with the oxidizer and burns. For some fuels if the temperature is low enough, not enough will vaporize to sustain the fire and it will go out. Extreme cold would perform the same action. …

Is White Fire Possible?

You can make fire burn with a pure white flame. White is an elusive fire color because the fuel that supports a flame burns with its own characteristic spectrum. But, with a little chemistry know-how, you can get white fire. Here’s how to do it, along with tips to make the fire last.

Is purple fire real?

Purple flames come from metal salts, such as potassium and rubidium. … Purple is unusual because it’s not a color of the spectrum. Purple and magenta result from a mixture of blue light and red light. For this project, the fire color comes from the emission spectra of safe chemicals.

Why our shadow is black?

a shadow is caused by an object blocking light so that it does not reach a surface. The area in shadow appears black because there is no light falling on it—-it appears dark. In fact most shadows are not totally black because light usually bounces around the obstruction off other objects.

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