Ignition point

[rán di ǎ n]

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Ignition point It refers to the minimum temperature required to apply external heat source to ignite the material surface and keep burning for a certain time under specified test conditions. Fully exposing combustibles to hot surfaces, electric heating wire and small ignition sources (such as medium spark discharge) in radiation energy may cause ignition. There is often an inverted relationship between the ignition energy or temperature listed here and the exposure time required for ignition. The stronger the ignition energy, the faster the ignition. The weaker the ignition source, the longer the exposure time is required. A strong ignition source can also directly cause detonation.^[1]

Chinese name: Ignition point

Foreign name: Ignition point
hydrogen: 580—600

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Flash point refers to gas, liquid and solid Combustible It coexists with air. When it reaches a certain temperature, it will burn automatically when it contacts with the fire source. The lowest temperature that can continue to burn after the fire source is removed is called the ignition point or ignition point of the material.

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Ignition point of substance

material	Flash point (℃)	material	Flash point (℃)
hydrogen	580—600	yellow phosphorus	sixty
methane	650—750	Red phosphorus	two hundred and sixty
ethane	520—630	Sulfur	one hundred and ninety
ethylene	542—547	Iron powder	315—320
acetylene	406—440	Magnesium powder	520—600
carbon monoxide	641—658	Aluminium powder	550—540
hydrogen sulfide	346—379	High temperature coke	440—600
Polyphenylene	four hundred and twenty	Cocoa powder	four hundred and twenty
Melamine	790—810	Coffee	four hundred and ten
rubber	three hundred and fifty	Starch (cereals)	three hundred and eighty
cork	four hundred and seventy	rice	four hundred and forty
wood	400—470	Granulated sugar	three hundred and fifty
Transverse papermaking	four hundred and fifty	soap	four hundred and thirty
Bleached cloth	four hundred and ninety-five
charcoal	320—400
Peat	225—280
anthracite	440—500
epoxy resin	530—540
teflon	six hundred and seventy
nylon	five hundred
polystyrene	450—500

Temperature of flame

flame	temperature	colour	temperature
candle	one thousand and four hundred	Primary redness	five hundred
ethanol	one thousand and seven hundred	Dark red	seven hundred
Bunsen burner	one thousand and eight hundred	Fuchsia	nine hundred
hydrogen	one thousand and nine hundred	Bright fuchsia	one thousand
acetylene	two thousand and five hundred	Orange	one thousand and one hundred
Carbon monoxide and oxygen	two thousand and six hundred	Fresh orange	one thousand and two hundred
Hydrogen and oxygen (oxyhydrogen)	two thousand and eight hundred	white	one thousand and three hundred
Acetylene and oxygen	three thousand and eight hundred	Vertiginous whiteness	one thousand and five hundred

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