What is the ignition point of sulfur?
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Some data indicate 246-260℃, and some say 380℃. How much is it? Could you please give me some advice?
The ignition point of sulfur is 248 to 261℃
Some information shows that it is 246-266℃
Sulfur, commonly known as sulfur, is a yellow solid at room temperature and has multiple isomers. The density is 2.08, the auto-ignition point is 250℃, and the melting point is 114.5~119℃. When heated to above 114.5℃, it melts into a bright liquid. When heated to 160~170℃, it thickens and turns black. When heated to 250℃, it becomes liquid again. It is non-toxic, tasteless, insoluble in water, slightly soluble in ethanol and ether, and easily soluble in carbon disulfide. It has poor thermal and electrical conductivity and is brittle. Sulfur is very reactive, with a self-ignition temperature of 248 to 266°C in the air. The self-ignition point decreases when it contains impurities. Sulfur dust is prone to combustion and explosion in the air, and the lower limit in the air exceeds 35g/m3. A mixture of sulfur and potassium chlorate forms * * It is very sensitive and will explode after a slight impact and friction, but the mixture with potassium nitrate hardly burns. Sulfur should be stored separately from oxidants. Fire extinguishing methods: Spray mist water and sand.
The ignition point of sulfur is 246~266 degrees, which is a more accurate statement. When the content of sulfur dust in the air is greater than 35g/m3, it can cause an explosion when it comes into contact with a fire source. Minimum ignition energy is 15mJ. The maximum explosion pressure is 273600Pa.
I support the 3rd floor’s opinion. Support support!
When sulfur is heated in air, the lowest temperature at which combustion begins and continues is called the ignition point. The ignition point of sulfur varies depending on the shape of the sample and the measurement method.
The lowest ignition point of ordinary sulfur powder is 248 degrees, and the ignition point of insoluble sulfur powder is 240 degrees.